Gli the cat of Hagia Sophia or Ayasofya, a UNESCO World Heritage Site which was a Byzantine cathedral before it was converted into a mosque and currently a museum, is pictured in Istanbul, Turkey, July 2, 2020. REUTERS/Murad Sezer

A visitor poses for a souvenir picture at the Hagia Sophia or Ayasofya, a UNESCO World Heritage Site which was a Byzantine cathedral before it was converted into a mosque and currently a museum, in Istanbul, Turkey, July 2, 2020. REUTERS/Murad Sezer

People pose for a selfie as they visit the Hagia Sophia or Ayasofya, a UNESCO World Heritage Site which was a Byzantine cathedral before it was converted into a mosque and currently a museum, in Istanbul, Turkey, July 2, 2020. REUTERS/Murad Sezer

TV journalists report in front of the Hagia Sophia or Ayasofya, a UNESCO World Heritage Site which was a Byzantine cathedral before it was converted into a mosque and currently a museum, in Istanbul, Turkey, July 2, 2020. REUTERS/Murad Sezer

People visit the Hagia Sophia or Ayasofya, a UNESCO World Heritage Site which was a Byzantine cathedral before it was converted into a mosque and currently a museum, in Istanbul, Turkey, July 2, 2020. REUTERS/Murad Sezer

A cyclist rides past the Hagia Sophia or Ayasofya, a UNESCO World Heritage Site which was a Byzantine cathedral before it was converted into a mosque and currently a museum, in Istanbul, Turkey, July 2, 2020. REUTERS/Murad Sezer

Hagia Sophia or Ayasofya, a UNESCO World Heritage Site, that was a Byzantine cathedral before being converted into a mosque which is currently a museum, is seen in Istanbul, Turkey, June 28, 2020. Picture taken June 28, 2020. Picture taken with a drone. Picture taken June 28, 2020. REUTERS/Murad Sezer

Hagia Sophia or Ayasofya, a UNESCO World Heritage Site, that was a Byzantine cathedral before being converted into a mosque which is currently a museum, is seen in Istanbul, Turkey, June 28, 2020. Picture taken June 28, 2020. Picture taken with a drone. REUTERS/Murad Sezer

Hagia Sophia or Ayasofya, a UNESCO World Heritage Site, that was a Byzantine cathedral before being converted into a mosque which is currently a museum, is seen in Istanbul, Turkey, June 28, 2020. Picture taken June 28, 2020. Picture taken with a drone. Picture taken June 28, 2020. REUTERS/Murad Sezer

Hagia Sophia or Ayasofya, a UNESCO World Heritage Site, that was a Byzantine cathedral before being converted into a mosque which is currently a museum, is seen in Istanbul, Turkey, June 28, 2020. Picture taken June 28, 2020. Picture taken with a drone. Picture taken June 28, 2020. REUTERS/Murad Sezer

People visit Hagia Sophia or Ayasofya, a UNESCO World Heritage Site, which was a Byzantine cathedral before being converted into a mosque which is currently a museum, in Istanbul, Turkey, June 30, 2020. REUTERS/Murad Sezer

People visit Hagia Sophia or Ayasofya, a UNESCO World Heritage Site, which was a Byzantine cathedral before being converted into a mosque which is currently a museum, in Istanbul, Turkey, June 30, 2020. REUTERS/Murad Sezer

People visit Hagia Sophia or Ayasofya, a UNESCO World Heritage Site, which was a Byzantine cathedral before being converted into a mosque which is currently a museum, in Istanbul, Turkey, June 30, 2020. REUTERS/Murad Sezer

People visit Hagia Sophia or Ayasofya, a UNESCO World Heritage Site, which was a Byzantine cathedral before being converted into a mosque which is currently a museum, in Istanbul, Turkey, June 30, 2020. REUTERS/Murad Sezer

A view of Hagia Sophia or Ayasofya, a UNESCO World Heritage Site, which was a Byzantine cathedral before being converted into a mosque which is currently a museum, in Istanbul, Turkey, June 30, 2020. REUTERS/Murad Sezer

People visit Hagia Sophia or Ayasofya, a UNESCO World Heritage Site, which was a Byzantine cathedral before being converted into a mosque which is currently a museum, in Istanbul, Turkey, June 30, 2020. REUTERS/Murad Sezer

People visit Hagia Sophia or Ayasofya, a UNESCO World Heritage Site, which was a Byzantine cathedral before being converted into a mosque which is currently a museum, in Istanbul, Turkey, June 30, 2020. REUTERS/Murad Sezer

People visit Hagia Sophia or Ayasofya, a UNESCO World Heritage Site, which was a Byzantine cathedral before being converted into a mosque which is currently a museum, in Istanbul, Turkey, June 30, 2020. REUTERS/Murad Sezer

The UNESCO World Heritage site Sanssouci Palace is illuminated in red light to protest against the lockdown due to the coronavirus disease (COVID-19), during the "Nights of Lights" in Potsdam, Germany, June 22, 2020. REUTERS/Annegret Hilse

The UNESCO World Heritage site Sanssouci Palace is illuminated in red light to protest against the lockdown due to the coronavirus disease (COVID-19), during the "Nights of Lights" in Potsdam, Germany, June 22, 2020. REUTERS/Annegret Hilse

The UNESCO World Heritage site Sanssouci Palace is illuminated in red light to protest against the lockdown due to the coronavirus disease (COVID-19), during the "Nights of Lights" in Potsdam, Germany, June 22, 2020. REUTERS/Annegret Hilse

The UNESCO World Heritage site Sanssouci Palace is illuminated in red light to protest against the coronavirus disease (COVID-19) lockdown, during the "Night of Light" in Potsdam, Germany, June 22, 2020. REUTERS/Annegret Hilse TPX IMAGES OF THE DAY

People visit the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after lockdown due to the outbreak of the coronavirus disease (COVID-19) was eased in Battle, Britain June 14, 2020. REUTERS/Paul Childs

An arrow is pictured at the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after lockdown due to the outbreak of the coronavirus disease (COVID-19) was eased in Battle, Britain June 14, 2020. REUTERS/Paul Childs

Children play next to a statue at the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after lockdown due to the outbreak of the coronavirus disease (COVID-19) was eased in Battle, Britain June 14, 2020. REUTERS/Paul Childs

A statue is pictured at the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after lockdown due to the outbreak of the coronavirus disease (COVID-19) was eased in Battle, Britain June 14, 2020. REUTERS/Paul Childs

A sign shows direction to the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after lockdown due to the outbreak of the coronavirus disease (COVID-19) was eased in Battle, Britain June 14, 2020. REUTERS/Paul Childs

Visitors enter the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after lockdown due to the outbreak of the coronavirus disease (COVID-19) was eased in Battle, Britain June 14, 2020. REUTERS/Paul Childs

Visitors look at a statue at the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after lockdown due to the outbreak of the coronavirus disease (COVID-19) was eased in Battle, Britain June 14, 2020. REUTERS/Paul Childs

A statue is pictured at the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after lockdown due to the outbreak of the coronavirus disease (COVID-19) was eased in Battle, Britain June 14, 2020. REUTERS/Paul Childs

Visitors look at a map at the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after lockdown due to the outbreak of the coronavirus disease (COVID-19) was eased in Battle, Britain June 14, 2020. REUTERS/Paul Childs

A staff worker cleans a statue at the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after lockdown due to the outbreak of the coronavirus disease (COVID-19) was eased in Battle, Britain June 14, 2020. REUTERS/Paul Childs

A staff worker cleans a statue at the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after lockdown due to the outbreak of the coronavirus disease (COVID-19) was eased in Battle, Britain June 14, 2020. REUTERS/Paul Childs

A staff worker cleans a statue at the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after lockdown due to the outbreak of the coronavirus disease (COVID-19) was eased in Battle, Britain June 14, 2020. REUTERS/Paul Childs

A map of Battle is pictured near the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after lockdown due to the outbreak of the coronavirus disease (COVID-19) was eased in Battle, Britain June 14, 2020. REUTERS/Paul Childs

A social distance sign is pictured as visitors walk at the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after the lockdown due to the outbreak of the coronavirus disease (COVID-19) in Battle, Britain June 14, 2020. REUTERS/Paul Childs

Visitors leave the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after the lockdown due to the outbreak of the coronavirus disease (COVID-19) in Battle, Britain June 14, 2020. REUTERS/Paul Childs

A person uses a hand sanitiser at the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after the lockdown due to the outbreak of the coronavirus disease (COVID-19) in Battle, Britain June 14, 2020. REUTERS/Paul Childs

Visitors walk at the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after the lockdown due to the outbreak of the coronavirus disease (COVID-19) in Battle, Britain June 14, 2020. REUTERS/Paul Childs

A sign informs about safety measures implemented by the staff members at the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after the lockdown due to the outbreak of the coronavirus disease (COVID-19) in Battle, Britain June 14, 2020. REUTERS/Paul Childs

People pose for a picture at the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after the lockdown due to the outbreak of the coronavirus disease (COVID-19) in Battle, Britain June 14, 2020. REUTERS/Paul Childs

A staff member cleans a statue at the English Heritage - 1066 Battle of Hastings, Abbey and Battlefield during the reopening after the lockdown due to the outbreak of the coronavirus disease (COVID-19) in Battle, Britain June 14, 2020. REUTERS/Paul Childs

Lee Anderson MP speaks to a Heritage Warden whilst cleaning graffiti from the statue of Winston Churchill at Parliament Square, in the aftermath of protests against the death of George Floyd who died in police custody in Minneapolis, London, Britain, June 8, 2020. REUTERS/John Sibley

Lee Anderson MP speaks to a Heritage Warden whilst cleaning graffiti from the statue of Winston Churchill at Parliament Square, in the aftermath of protests against the death of George Floyd who died in police custody in Minneapolis, London, Britain, June 8, 2020. REUTERS/John Sibley

Curator of the Uffizi Architectural Heritage Antonio Godoli, Director of the Uffizi Gallery Eike Dieter Schmidt, Countess Maria Vittoria Rimbotti, president of Friends of the Uffizi, Mayor of Florence Dario Nardella and Councillor of Culture of Florence Tommaso Sacchi cut the ribbon during the reopening of the gallery with new social distancing and hygiene rules in place after months of closure due to the outbreak of the coronavirus disease (COVID-19), in Florence, Italy, June 2, 2020. REUTERS/Jennifer Lorenzini

A man looks at Nakba-related pieces exhibited in a heritage museum, as Palestinians prepare to mark the event amid the coronavirus disease (COVID-19) restrictions, in al-Fari'ah refugee camp, in the Israeli-occupied West Bank May 12, 2020. Picture taken May 12, 2020. REUTERS/Raneen Sawafta

A man sits in a heritage museum where Nakba-related pieces are exhibited, as Palestinians prepare to mark the event amid the coronavirus disease (COVID-19) restrictions, in al-Fari'ah refugee camp, in the Israeli-occupied West Bank May 12, 2020. Picture taken May 12, 2020. REUTERS/Raneen Sawafta

A bicyclist rides next to a billboard, a part of a "Mask Fashion Week" during the coronavirus disease (COVID-19) outbreak in Vilnius, Lithuania May 5, 2020. Twenty-one billboards dotted around the UNESCO World Heritage city feature photographs of men, women and children wearing masks as part of a so-called "Mask Fashion Week." REUTERS/Andrius Sytas

People walk on a street next to a billboard, a part of a "Mask Fashion Week" during the coronavirus disease (COVID-19) outbreak in Vilnius, Lithuania May 5, 2020. Twenty-one billboards dotted around the UNESCO World Heritage city feature photographs of men, women and children wearing masks as part of a so-called "Mask Fashion Week." REUTERS/Andrius Sytas

Swayambhunath Stupa, a UNESCO world heritage site, surrounded by a densely built-up area is seen as pollution level drops on the forty-second day of the lockdown imposed by the government amid concerns about the spread of the coronavirus disease (COVID-19) outbreak, in Kathmandu, Nepal May 4, 2020. REUTERS/Navesh Chitrakar TPX IMAGES OF THE DAY

A man stands at a deserted street along Taleju Temple at Kathmandu Durbar Square, a UNESCO world heritage site, during the thirty-eight day of the lockdown imposed by the government amid concerns about the spread of coronavirus disease (COVID-19) outbreak, in Kathmandu, Nepal April 30, 2020. REUTERS/Navesh Chitrakar

A police vehicle sanitises Piazza Duomo, a UNESCO world heritage site in the Sicilian port city of Catania, as the spread of the coronavirus disease (COVID-19) continues, in Catania, Italy, April 18, 2020. REUTERS/Antonio Parrinello

The inside of a police vehicle that is used to sanitise Piazza Duomo, a UNESCO world heritage site in the Sicilian port city of Catania, is seen as the spread of the coronavirus disease (COVID-19) continues, in Catania, Italy, April 18, 2020. REUTERS/Antonio Parrinello

A police vehicle sanitises Piazza Duomo, a UNESCO world heritage site in the Sicilian port city of Catania, as the spread of the coronavirus disease (COVID-19) continues, in Catania, Italy, April 18, 2020. REUTERS/Antonio Parrinello

A police vehicle sanitises Piazza Duomo, a UNESCO world heritage site in the Sicilian port city of Catania, as the spread of the coronavirus disease (COVID-19) continues, in Catania, Italy, April 18, 2020. REUTERS/Antonio Parrinello

A vehicle sanitises Piazza Duomo, a UNESCO world heritage site in the Sicilian port city of Catania, as the spread of the coronavirus disease (COVID-19) continues, in Catania, Italy, April 18, 2020. REUTERS/Antonio Parrinello

A police vehicle sanitises Piazza Duomo, a UNESCO world heritage site in the Sicilian port city of Catania, while councilor for the environment of Catania Fabio Cantarella (R) watches as the spread of the coronavirus disease (COVID-19) continues, in Catania, Italy, April 18, 2020. REUTERS/Antonio Parrinello

A police vehicle sanitises Piazza Duomo, a UNESCO world heritage site in the Sicilian port city of Catania, while councilor for the environment of Catania Fabio Cantarella (R) watches as the spread of the coronavirus disease (COVID-19) continues, in Catania, Italy, April 18, 2020. REUTERS/Antonio Parrinello

A police vehicle sanitises Piazza Duomo, a UNESCO world heritage site in the Sicilian port city of Catania, while councilor for the environment of Catania Fabio Cantarella (R) watches as the spread of the coronavirus disease (COVID-19) continues, in Catania, Italy, April 18, 2020. REUTERS/Antonio Parrinello

A police vehicle sanitises Piazza Duomo, a UNESCO world heritage site in the Sicilian port city of Catania, while councilor for the environment of Catania Fabio Cantarella (R) watches as the spread of the coronavirus disease (COVID-19) continues, in Catania, Italy, April 18, 2020. REUTERS/Antonio Parrinello