Chris Henry, of the Brothers of Brass band, plays the trumpet with the Colorado State Capitol building in the background during a performance at an event to mark Juneteenth, which commemorates the end of slavery in Texas, two years after the 1863 Emancipation Proclamation freed slaves elsewhere in the United States, amid nationwide protests against racial inequality in Civic Center Park in Denver, Colorado, U.S., June 20, 2020. REUTERS/Kevin Mohatt

Nicaragua's Foreign Minister and member of the Government of reconciliation and national unity (GRUN) Denis Ronaldo Moncada Colindres speaks with journalists during his arrival at the Central American Institute of Business Administration (INCAE) building to meet with members of the Civic Alliance in Managua, Nicaragua May 6, 2019. REUTERS/Oswaldo Rivas

Jose Pallais, member of the Civic Alliance, speaks with journalists during his arrival at the Central American Institute of Business Administration (INCAE) building to meet with members of the Government of reconciliation and national unity (GRUN) in Managua, Nicaragua May 6, 2019. REUTERS/Oswaldo Rivas

Members of the Government of reconciliation and national unity (GRUN) arrive at the Central American Institute of Business Administration (INCAE) building to meet with members of the Civic Alliance in Managua, Nicaragua May 6, 2019. REUTERS/Oswaldo Rivas

Nicaragua's Foreign Minister and member of the Government of reconciliation and national unity (GRUN) Denis Ronaldo Moncada Colindres speaks with journalists during his arrival at the Central American Institute of Business Administration (INCAE) building to meet with members of the Civic Alliance in Managua, Nicaragua May 6, 2019. REUTERS/Oswaldo Rivas

Jose Pallais, member of the Civic Alliance, speaks with journalists after a meeting with members of the Government of reconciliation and national unity (GRUN) at the Central American Institute of Business Administration (INCAE) building in Managua, Nicaragua April 29, 2019. REUTERS/Oswaldo Rivas

Jose Pallais, member of the Civic Alliance leaves after a meeting with members of the Government of reconciliation and national unity (GRUN) at the Central American Institute of Business Administration (INCAE) building in Managua, Nicaragua April 29, 2019. REUTERS/Oswaldo Rivas

Francisco Rosales, member of the Government of reconciliation and national unity (GRUN), greets the media from inside his car after a meeting with members of the Civic Alliance at the Central American Institute of Business Administration (INCAE) building in Managua, Nicaragua April 29, 2019. REUTERS/Oswaldo Rivas

Jose Pallais, member of the Civic Alliance, speaks with journalists after a meeting with members of the Government of reconciliation and national unity (GRUN) at the Central American Institute of Business Administration (INCAE) building in Managua, Nicaragua April 29, 2019. REUTERS/Oswaldo Rivas

Nicaragua's Foreign Minister and member of the Government of reconciliation and national unity (GRUN) Denis Ronaldo Moncada Colindres leaves after a meeting with members of the Civic Alliance at the Central American Institute of Business Administration (INCAE) building in Managua, Nicaragua April 29, 2019. REUTERS/Oswaldo Rivas

Riot police stand guard in front of Montenegro's state television building during a civic protest in Podgorica, Montenegro, April 20, 2019. REUTERS/Stevo Vasiljevic TPX IMAGES OF THE DAY

Riot police stand guard in front of Montenegro's state television building during a civic protest in Podgorica, Montenegro, April 20, 2019. REUTERS/Stevo Vasiljevic

Riot police stand guard in front of Montenegro's state television building during a civic protest in Podgorica, Montenegro, April 20, 2019. REUTERS/Stevo Vasiljevic

Riot police stand guard inside Montenegro's state television building during a civic protest in Podgorica, Montenegro, April 20, 2019. REUTERS/Stevo Vasiljevic

Riot police stand guard in front of Montenegro's state television building during a civic protest in Podgorica, Montenegro, April 20, 2019. REUTERS/Stevo Vasiljevic

President of Potomi Civic Committee (COMCIPO) Johnny Lalli, attend a meeting with government officials (no pictured) in La Paz, Bolivia July 28, 2015. Miners and farmers from the southern Bolivian department of Potosi have been on strike for more than two weeks. They are demanding that President Evo Morales fulfill promises to build frastructure and create jobs in their region. REUTERS/David Mercado

Farmers, who are members of Potosi Civic Committee (COMCIPO), attend a meeting with government officials (no pictured) in La Paz, Bolivia July 28, 2015. Miners and farmers from the southern Bolivian department of Potosi have been on strike for more than two weeks. They are demanding that President Evo Morales fulfill promises to build infrastructure and create jobs in their region. REUTERS/David Mercado

Mine workers, who are members of Potosi Civic Committee (COMCIPO), attend a meeting with government officials (no pictured) in La Paz, Bolivia July 28, 2015.. Miners from the southern Bolivian department of Potosi have been on strike for more than two weeks. They are demanding that President Evo Morales fulfill promises to build infrastructure and create jobs in their region. REUTERS/David Mercado

Mine workers, who are members of Potosi Civic Committee (COMCIPO), attend a meeting with government authorities (not pictured) in La Paz, Bolivia July 25, 2015.. Miners from the southern Bolivian department of Potosi have been on strike for more than two weeks. They are demanding that President Evo Morales fulfill promises to build infrastructure and create jobs in their region. REUTERS/David Mercado

Bolivia's Presidency Minister Juan Ramon Quintana (L) talks with a mine worker who is a member of Potosi Civic Committee (COMCIPO) in La Paz, Bolivia July 25, 2015. Miners from the southern Bolivian department of Potosi have been on strike for more than two weeks. They are demanding that President Evo Morales fulfill promises to build infrastructure and create jobs in their region. REUTERS/David Mercado

Bolivia's Presidency Minister Juan Ramon Quintana attends a meeting with members of Potosi Civic Committee (COMCIPO), in La Paz, Bolivia July 25, 2015. Miners from the southern Bolivian department of Potosi have been on strike for more than two weeks. They are demanding that President Evo Morales fulfill promises to build infrastructure and create jobs in their region. REUTERS/David Mercado

Mine workers, who are members of Potosi Civic Committee (COMCIPO), attend a meeting with government authorities in La Paz, Bolivia July 25, 2015. Miners from the southern Bolivian department of Potosi have been on strike for more than two weeks. They are demanding that President Evo Morales fulfill promises to build infrastructure and create jobs in their region. REUTERS/David Mercado

A mine worker, who is a member of Potosi Civic Committee (COMCIPO), attends a meeting with government authorities in La Paz, Bolivia July 25, 2015. Miners from the southern Bolivian department of Potosi have been on strike for more than two weeks. They are demanding that President Evo Morales fulfill promises to build infrastructure and create jobs in their region. REUTERS/David Mercado

A mine worker, who is a member of Potosi Civic Committee (COMCIPO), attends a meeting with government authorities in La Paz, Bolivia July 25, 2015. Miners from the southern Bolivian department of Potosi have been on strike for more than two weeks. They are demanding that President Evo Morales fulfill promises to build infrastructure and create jobs in their region. REUTERS/David Mercado

Bolivia's Government Minister Carlos Romero speaks during a meeting with members of Potosi Civic Committee (COMCIPO) in La Paz, Bolivia July 25, 2015. Miners from the southern Bolivian department of Potosi have been on strike for more than two weeks. They are demanding that President Evo Morales fulfill promises to build infrastructure and create jobs in their region. REUTERS/David Mercado

Mine workers, who are members of Potosi Civic Committee (COMCIPO), attend a meeting with government authorities in La Paz, Bolivia July 25, 2015. Miners from the southern Bolivian department of Potosi have been on strike for more than two weeks. They are demanding that President Evo Morales fulfill promises to build infrastructure and create jobs in their region. REUTERS/David Mercado

Government authorities (R) meet with members of Potosi Civic Committee (COMCIPO) for a dialogue in La Paz, Bolivia July 25, 2015. Miners from the southern Bolivian department of Potosi have been on strike for more than two weeks. They are demanding that President Evo Morales fulfill promises to build infrastructure and create jobs in their region. REUTERS/David Mercado

President of the Potosi Civic Committee (COMCIPO) Johnny Llalli is seen talking on his mobile phone before starting a dialogue with government authorities in La Paz, Bolivia July 25, 2015. Miners from the southern Bolivian department of Potosi have been on strike for more than two weeks. They are demanding that President Evo Morales fulfill promises to build infrastructure and create jobs in their region. REUTERS/David Mercado

President of the Potosi Civic Committee (COMCIPO) Johnny Llalli speaks to the media before starting a dialogue with government authorities in La Paz, Bolivia July 25, 2015. Miners from the southern Bolivian department of Potosi have been on strike for more than two weeks. They are demanding that President Evo Morales fulfill promises to build infrastructure and create jobs in their region. REUTERS/David Mercado

Civic Party co-founder and pro-democracy lawmaker Ronny Tong looks on in front of the Legislative Council logo as he announces his resignation from the party and the Legislative Council during a news conference at the council building in Hong Kong, China June 22, 2015. REUTERS/Bobby Yip

Civic Party co-founder and pro-democracy lawmaker Ronny Tong walks past the Legislative Council logo as he leaves after announcing his resignation from the party and the Legislative Council during a news conference at the council building in Hong Kong, China June 22, 2015. REUTERS/Bobby Yip

Civic Party co-founder and pro-democracy lawmaker Ronny Tong looks on as he announces his resignation from the party and the Legislative Council during a news conference at the council building in Hong Kong, China June 22, 2015. REUTERS/Bobby Yip

Civic Party co-founder and pro-democracy lawmaker Ronny Tong bows as he announces his resignation from the party and the Legislative Council during a news conference at the council building in Hong Kong, China June 22, 2015. REUTERS/Bobby Yip

Civic Party co-founder and pro-democracy lawmaker Ronny Tong reacts as he announces his resignation from the party and the Legislative Council during a news conference at the council building in Hong Kong, China June 22, 2015. REUTERS/Bobby Yip

Civic Party co-founder and pro-democracy lawmaker Ronny Tong holds back his tears as he announces his resignation from the party and the Legislative Council during a news conference at the council building in Hong Kong, China June 22, 2015. REUTERS/Bobby Yip TPX IMAGES OF THE DAY

Holidaymakers rest at a beach in the resort town of Bodrum July 14, 2014. As families splash in the sea and lounge in the sun, thoughts of politics and civic duty are a world away for most Turks holidaying on the Aegean and Mediterranean coasts. Only the most committed opponents of Prime Minister Tayyip Erdogan leave the beach to queue in a sweltering council building nearby to register to vote in next month's presidential election to prevent what they see as the country's slide towards authoritarianism. Thousands of people with holiday homes in the summer playgrounds of Bodrum, Cesme and Marmaris that are popular with opposition sympathisers have applied for a change of address to enable them to vote while away. Picture taken July 14, 2014. REUTERS/Tuncay Dersinlioglu//KODA Collective (TURKEY - Tags: POLITICS TRAVEL SOCIETY ELECTIONS)

A woman walks past by a statue of modern Turkey's founder Mustafa Kemal Ataturk in the resort town of Bodrum July 14, 2014. As families splash in the sea and lounge in the sun, thoughts of politics and civic duty are a world away for most Turks holidaying on the Aegean and Mediterranean coasts. Only the most committed opponents of Prime Minister Tayyip Erdogan leave the beach to queue in a sweltering council building nearby to register to vote in next month's presidential election to prevent what they see as the country's slide towards authoritarianism. Thousands of people with holiday homes in the summer playgrounds of Bodrum, Cesme and Marmaris that are popular with opposition sympathisers have applied for a change of address to enable them to vote while away. Picture taken July 14, 2014. REUTERS/Tuncay Dersinlioglu//KODA Collective (TURKEY - Tags: POLITICS SOCIETY TRAVEL ELECTIONS)

3D mapping projection are seen on the facade of the National Library during the opening ceremony in Sarajevo May 9, 2014. Sarajevo's landmark 19th century city hall-turned-National Library will re-open on Friday with its old glory fully restored, after it was reduced to rubble by Serb shelling of the besieged Bosnian capital in summer 1992.
The re-opening of the city's beloved Vijecnica is one in a series of events that will mark the centenary of the start of the World War One, triggered by the Sarajevo killing of Austrian Archduke Franz Ferdinand and his wife Sofia on June 28, 1914. A graceful pseudo-Moorish building, a source of civic pride, was burned out in Serb fire in August 1992, nearly 100 years after it was built. The Bosnian Serb 43-month siege of Sarajevo from 1992-95 was Europe's longest after the World War Two. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: TPX IMAGES OF THE DAY CONFLICT SOCIETY)

3D mapping projections of the logo of the Sarajevo Winter Olympics are seen on the facade of the National Library during opening ceremony in Sarajevo May 9, 2014. Sarajevo's landmark 19th century city hall-turned-National Library will re-open on Friday with its old glory fully restored, after it was reduced to rubble by Serb shelling of the besieged Bosnian capital in summer 1992.
The re-opening of the city's beloved Vijecnica is one in a series of events that will mark the centenary of the start of the World War One, triggered by the Sarajevo killing of Austrian Archduke Franz Ferdinand and his wife Sofia on June 28, 1914. A graceful pseudo-Moorish building, a source of civic pride, was burned out in Serb fire in August 1992, nearly 100 years after it was built. The Bosnian Serb 43-month siege of Sarajevo from 1992-95 was Europe's longest after the World War Two. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: SPORT OLYMPICS CONFLICT SOCIETY)

3D mapping projections of Davorin Popovic, frontman of Bosnian rock band Indexi, are seen on the facade of the National Library during opening ceremony in Sarajevo May 9, 2014. Sarajevo's landmark 19th century city hall-turned-National Library will re-open on Friday with its old glory fully restored, after it was reduced to rubble by Serb shelling of the besieged Bosnian capital in summer 1992.
The re-opening of the city's beloved Vijecnica is one in a series of events that will mark the centenary of the start of the World War One, triggered by the Sarajevo killing of Austrian Archduke Franz Ferdinand and his wife Sofia on June 28, 1914. A graceful pseudo-Moorish building, a source of civic pride, was burned out in Serb fire in August 1992, nearly 100 years after it was built. The Bosnian Serb 43-month siege of Sarajevo from 1992-95 was Europe's longest after the World War Two. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: ENTERTAINMENT CONFLICT SOCIETY)

3D mapping projections of Bosnian writers ware seen on the facade of the National Library during opening ceremony in Sarajevo May 9, 2014. Sarajevo's landmark 19th century city hall-turned-National Library will re-open on Friday with its old glory fully restored, after it was reduced to rubble by Serb shelling of the besieged Bosnian capital in summer 1992.
The re-opening of the city's beloved Vijecnica is one in a series of events that will mark the centenary of the start of the World War One, triggered by the Sarajevo killing of Austrian Archduke Franz Ferdinand and his wife Sofia on June 28, 1914. A graceful pseudo-Moorish building, a source of civic pride, was burned out in Serb fire in August 1992, nearly 100 years after it was built. The Bosnian Serb 43-month siege of Sarajevo from 1992-95 was Europe's longest after the World War Two. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: CONFLICT SOCIETY ENTERTAINMENT)

A 3D mapping projection of 100 year old postcards of Sarajevo are seen on the facade of the National Library during opening ceremony in Sarajevo May 9, 2014. Sarajevo's landmark 19th century city hall-turned-National Library will re-open on Friday with its old glory fully restored, after it was reduced to rubble by Serb shelling of the besieged Bosnian capital in summer 1992.
The re-opening of the city's beloved Vijecnica is one in a series of events that will mark the centenary of the start of the World War One, triggered by the Sarajevo killing of Austrian Archduke Franz Ferdinand and his wife Sofia on June 28, 1914. A graceful pseudo-Moorish building, a source of civic pride, was burned out in Serb fire in August 1992, nearly 100 years after it was built. The Bosnian Serb 43-month siege of Sarajevo from 1992-95 was Europe's longest after the World War Two. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: CONFLICT SOCIETY)

3D mapping projection on National Library during opening ceremony in Sarajevo May 9, 2014. Sarajevo's landmark 19th century city hall-turned-National Library will re-open on Friday with its old glory fully restored, after it was reduced to rubble by Serb shelling of the besieged Bosnian capital in summer 1992.
The re-opening of the city's beloved Vijecnica is one in a series of events that will mark the centenary of the start of the World War One, triggered by the Sarajevo killing of Austrian Archduke Franz Ferdinand and his wife Sofia on June 28, 1914. A graceful pseudo-Moorish building, a source of civic pride, was burned out in Serb fire in August 1992, nearly 100 years after it was built. The Bosnian Serb 43-month siege of Sarajevo from 1992-95 was Europe's longest after the World War Two. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: CONFLICT SOCIETY)

A combination picture shows various 3D mapping projections on the facade of the National Library during the opening ceremony in Sarajevo May 9, 2014. Sarajevo's landmark 19th century city hall-turned-National Library will re-open on Friday with its old glory fully restored, after it was reduced to rubble by Serb shelling of the besieged Bosnian capital in summer 1992.
The re-opening of the city's beloved Vijecnica is one in a series of events that will mark the centenary of the start of the World War One, triggered by the Sarajevo killing of Austrian Archduke Franz Ferdinand and his wife Sofia on June 28, 1914. A graceful pseudo-Moorish building, a source of civic pride, was burned out in Serb fire in August 1992, nearly 100 years after it was built. The Bosnian Serb 43-month siege of Sarajevo from 1992-95 was Europe's longest after the World War Two. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: CONFLICT SOCIETY)

3D mapping projections of Nazi swastikas are seen on the National Library during opening ceremony in Sarajevo May 9, 2014. Sarajevo's landmark 19th century city hall-turned-National Library will re-open on Friday with its old glory fully restored, after it was reduced to rubble by Serb shelling of the besieged Bosnian capital in summer 1992.
The re-opening of the city's beloved Vijecnica is one in a series of events that will mark the centenary of the start of the World War One, triggered by the Sarajevo killing of Austrian Archduke Franz Ferdinand and his wife Sofia on June 28, 1914. A graceful pseudo-Moorish building, a source of civic pride, was burned out in Serb fire in August 1992, nearly 100 years after it was built. The Bosnian Serb 43-month siege of Sarajevo from 1992-95 was Europe's longest after the World War Two. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: SOCIETY CONFLICT)

A combination photo shows the National Library after shelling in the besieged Bosnian capital of Sarajevo on August 26, 1992 (bottom), and after being renovated on May 8, 2014. Sarajevo's landmark 19th century city hall-turned-National Library will re-open on May 9, 2014 with its old glory fully restored, after it was reduced to rubble by Serb shelling in the summer of 1992. The re-opening of the city's beloved Vijecnica is one in a series of events that will mark the centenary of the start of World War One, triggered by the June 28, 1914 killing of Austrian Archduke Franz Ferdinand and his wife Sofia in Sarajevo. A graceful pseudo-Moorish building and a source of civic pride, the hall was burned out in Serb fire in August 1992, nearly 100 years after it was built. The Bosnian Serb 43-month siege of Sarajevo from 1992-95 was Europe's longest after World War Two. REUTERS/Hidajet Delic (bottom)/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: CONFLICT SOCIETY)

A combination photo shows the National Library after shelling in the besieged Bosnian capital of Sarajevo on August 26, 1992 (bottom), and after being renovated on May 8, 2014. Sarajevo's landmark 19th century city hall-turned-National Library will re-open on May 9, 2014 with its old glory fully restored, after it was reduced to rubble by Serb shelling in the summer of 1992. The re-opening of the city's beloved Vijecnica is one in a series of events that will mark the centenary of the start of World War One, triggered by the June 28, 1914 killing of Austrian Archduke Franz Ferdinand and his wife Sofia in Sarajevo. A graceful pseudo-Moorish building and a source of civic pride, the hall was burned out in Serb fire in August 1992, nearly 100 years after it was built. The Bosnian Serb 43-month siege of Sarajevo from 1992-95 was Europe's longest after World War Two. REUTERS/Hidajet Delic (bottom)/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: CONFLICT SOCIETY)

A combination photo shows the National Library burning after shelling in the besieged Bosnian capital of Sarajevo on August 26, 1992 (bottom), and after being renovated on May 8, 2014. Sarajevo's landmark 19th century city hall-turned-National Library will re-open on May 9, 2014 with its old glory fully restored, after it was reduced to rubble by Serb shelling in the summer of 1992. The re-opening of the city's beloved Vijecnica is one in a series of events that will mark the centenary of the start of World War One, triggered by the June 28, 1914 killing of Austrian Archduke Franz Ferdinand and his wife Sofia in Sarajevo. A graceful pseudo-Moorish building and a source of civic pride, the hall was burned out in Serb fire in August 1992, nearly 100 years after it was built. The Bosnian Serb 43-month siege of Sarajevo from 1992-95 was Europe's longest after World War Two. REUTERS/Hidajet Delic (bottom)/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: CITYSCAPE CONFLICT SOCIETY)

A combination picture shows a horse-drawn antique tram passing by the destroyed city library in the old part of Sarajevo on November 26, 1995 (bottom), and a tram passing by the same site after renovation on May 8, 2014. Sarajevo's landmark 19th century city hall-turned-National Library will re-open on May 9, 2014 with its old glory fully restored, after it was reduced to rubble by Serb shelling in the summer of 1992. The re-opening of the city's beloved Vijecnica is one in a series of events that will mark the centenary of the start of World War One, triggered by the June 28, 1914 killing of Austrian Archduke Franz Ferdinand and his wife Sofia in Sarajevo. A graceful pseudo-Moorish building and a source of civic pride, the hall was burned out in Serb fire in August 1992, nearly 100 years after it was built. The Bosnian Serb 43-month siege of Sarajevo from 1992-95 was Europe's longest after World War Two. REUTERS/Dado Ruvic (top)/Danilo Krstanovic (BOSNIA AND HERZEGOVINA - Tags: CONFLICT SOCIETY)

A combination photo shows the destroyed National Library hall after shelling in the besieged Bosnian capital of Sarajevo on August 26, 1992 (bottom), and the same hall after its renovation on May 8, 2014. Sarajevo's landmark 19th century city hall-turned-National Library will re-open on May 9, 2014 with its old glory fully restored, after it was reduced to rubble by Serb shelling in the summer of 1992. The re-opening of the city's beloved Vijecnica is one in a series of events that will mark the centenary of the start of World War One, triggered by the June 28, 1914 killing of Austrian Archduke Franz Ferdinand and his wife Sofia in Sarajevo. A graceful pseudo-Moorish building and a source of civic pride, the hall was burned out in Serb fire in August 1992, nearly 100 years after it was built. The Bosnian Serb 43-month siege of Sarajevo from 1992-95 was Europe's longest after World War Two. REUTERS/Hidajet Delic (bottom)/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: SOCIETY CONFLICT)

A combination picture shows a man carrying a sack of firewood across a destroyed bridge near the burnt-out library in the besieged Bosnian capital of Sarajevo on January 1, 1994 (bottom) and another man walking over the same bridge, now repaired, on May 8, 2014. Sarajevo's landmark 19th century city hall-turned-National Library will re-open on May 9, 2014 with its old glory fully restored, after it was reduced to rubble by Serb shelling in the summer of 1992. The re-opening of the city's beloved Vijecnica is one in a series of events that will mark the centenary of the start of World War One, triggered by the June 28, 1914 killing of Austrian Archduke Franz Ferdinand and his wife Sofia in Sarajevo. A graceful pseudo-Moorish building and a source of civic pride, the hall was burned out in Serb fire in August 1992, nearly 100 years after it was built. The Bosnian Serb 43-month siege of Sarajevo from 1992-95 was Europe's longest after World War Two. REUTERS/Peter Andrews (bottom)/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: CITYSCAPE CONFLICT SOCIETY)

A combination photo shows a woman standing in the destroyed National Library hall after shelling in the besieged Bosnian capital of Sarajevo on August 26, 1992 (bottom), and the same hall after its renovation on May 8, 2014. Sarajevo's landmark 19th century city hall-turned-National Library will re-open on May 9, 2014 with its old glory fully restored, after it was reduced to rubble by Serb shelling in the summer of 1992. The re-opening of the city's beloved Vijecnica is one in a series of events that will mark the centenary of the start of World War One, triggered by the June 28, 1914 killing of Austrian Archduke Franz Ferdinand and his wife Sofia in Sarajevo. A graceful pseudo-Moorish building and a source of civic pride, the hall was burned out in Serb fire in August 1992, nearly 100 years after it was built. The Bosnian Serb 43-month siege of Sarajevo from 1992-95 was Europe's longest after World War Two. REUTERS/Hidajet Delic (bottom)/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: SOCIETY CONFLICT TPX IMAGES OF THE DAY)

A combination photo shows the National Library burning after shelling in the besieged Bosnian capital of Sarajevo on August 26, 1992 (bottom), and after being renovated on May 8, 2014. Sarajevo's landmark 19th century city hall-turned-National Library will re-open on May 9, 2014 with its old glory fully restored, after it was reduced to rubble by Serb shelling in the summer of 1992. The re-opening of the city's beloved Vijecnica is one in a series of events that will mark the centenary of the start of World War One, triggered by the June 28, 1914 killing of Austrian Archduke Franz Ferdinand and his wife Sofia in Sarajevo. A graceful pseudo-Moorish building and a source of civic pride, the hall was burned out in Serb fire in August 1992, nearly 100 years after it was built. The Bosnian Serb 43-month siege of Sarajevo from 1992-95 was Europe's longest after World War Two. REUTERS/Hidajet Delic (bottom)/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: CITYSCAPE CONFLICT SOCIETY)

Rope access technicians work to complete a huge portrait of former South African President Nelson Mandela on the windows of the Civic Centre building in Cape Town, June 15, 2013. Mandela is recovering well from a lung infection which has kept him in a serious condition in hospital for a week, his grandson said on Saturday. REUTERS/Mark Wessels (SOUTH AFRICA - Tags: POLITICS HEALTH SOCIETY TPX IMAGES OF THE DAY)

Rope access technicians work to complete a huge portrait of former South African President Nelson Mandela on the windows of the Civic Centre building in Cape Town, June 15, 2013. Mandela is recovering well from a lung infection which has kept him in a serious condition in hospital for a week, his grandson said on Saturday. REUTERS/Mark Wessels (SOUTH AFRICA - Tags: POLITICS HEALTH SOCIETY)

People gather at the 4/20 pro-marijuana rally in Civic Center Park with the capitol building in the background in downtown Denver April 20, 2013. Thousands of marijuana enthusiasts gathered for an annual weekend celebration of cannabis, the first such assemblage since Colorado voters legalized the recreational use of pot last fall. Two people were shot at the rally, police said. One person was shot in the leg and another was "also down with unknown injuries," Denver police said on their Twitter page. REUTERS/Rick Wilking (UNITED STATES - Tags: DRUGS SOCIETY POLITICS CIVIL UNREST HEALTH)

The silhouette of a member of El Salvador's Mara Salvatrucha (MS-13) gang is seen behind a banner as he participates in a pledge event at the Barrio el Pino, outside San Salvador January 24, 2013. The event, sponsored by the country's Catholic Church, involves gang members who pledge to not commit violent acts in various municipalities of the country. It is held in conjunction with the church, civic organizations and government officials, marking the second phase of a truce between them and the gang which was originally signed in March 2012 in an effort to reduce violent crimes in the country. This truce has led to a dramatic decline in the number of murders committed in the country, according to local church leaders. The words on the banner read as "We (La Mara Salvatrucha MS-13) have the will, and you have the resource. Let's build peace together." REUTERS/Ulises Rodriguez (EL SALVADOR - Tags: SOCIETY CRIME LAW)

Shakeel Sheikh, 24, holding an improvised stick searches for rats with the help of a torch outside a residential building in Mumbai October 18, 2011. About 44 night rat killers are employed by pest control department of Brihanmumbai Municipal Corporation (BMC) to kill the rodents in the city. Employees of the pest control department get a salary of 15,000 to 17,000 Indian Rupees ($294 to 333) while the contract labourers are paid 5 Indian rupees ($0.10) per rat they kill. The rat killers are expected to kill at least 30 rodents per night and hand over the carcasses to civic officials in the morning. If they fall short by even one rodent, they are expected to make it up the next night else they stand to lose a day's pay. Mumbai is the only city in the world which employs full-time night right killers. Picture taken October 18, 2011. REUTERS/Danish Siddiqui (INDIA - Tags: SOCIETY BUSINESS EMPLOYMENT)

A welcome sign is seen above a door in Perth City Hall in Perth, Scotland November 16, 2011. Local councillors have approved a plan to demolish the derelict hall, and build a new civic space in its place, local media reported. REUTERS/Russell Cheyne (BRITAIN - Tags: POLITICS SOCIETY)

Pedestrians walk past Perth City Hall in Perth, Scotland November 16, 2011. Local councillors have approved a plan to demolish the derelict hall, and build a new civic space in its place, local media reported. REUTERS/Russell Cheyne (BRITAIN - Tags: POLITICS SOCIETY)