Fireworks explode near Petronas Twin Towers during New Year celebrations in Kuala Lumpur, Malaysia, January 1, 2020. REUTERS/Lim Huey Teng 

Fireworks explode near Petronas Twin Towers during New Year celebrations in Kuala Lumpur, Malaysia, January 1, 2020. REUTERS/Lim Huey Teng 

Fireworks explode near Petronas Twin Towers during New Year celebrations in Kuala Lumpur, Malaysia, January 1, 2020. REUTERS/Lim Huey Teng 

A Christmas tree is pictured in front of the Petronas Twin Towers in Kuala Lumpur, Malaysia, December 9, 2019. REUTERS/Lim Huey Teng 

A Christmas tree is pictured in front of the Petronas Twin Towers in Kuala Lumpur, Malaysia, December 9, 2019. REUTERS/Lim Huey Teng 

Petronas Twin Towers shrouded by haze in Kuala Lumpur, Malaysia, September 13, 2019. REUTERS/Lim Huey Teng 

A woman passes by Petronas Twin Towers shrouded in haze in Kuala Lumpur, Malaysia, September 13, 2019. REUTERS/Lim Huey Teng 

A girl looks at the Petronas Twin Towers shrouded in haze in Kuala Lumpur, Malaysia, September 11, 2019. REUTERS/Lim Huey Teng 

A woman wears a mask as Petronas Twin Tower is shrouded in haze in Kuala Lumpur, Malaysia, September 11, 2019. REUTERS/Lim Huey Teng 

Petronas Twin Towers are shrouded by haze in Kuala Lumpur, Malaysia, September 9, 2019. Picture taken on September 9, 2019. REUTERS/Lim Huey Teng 

People walk against the background of Petronas Twin Towers at the 20th Asia Oil & Gas Conference in Kuala Lumpur, Malaysia June 24, 2019. REUTERS/Lai Seng Sin 

Fireworks explode near Petronas Twin Towers during New Year celebrations in Kuala Lumpur, Malaysia January 1, 2019. REUTERS/Lai Seng Sin 

Fireworks explode near Petronas Twin Towers during New Year celebrations in Kuala Lumpur, Malaysia January 1, 2019. REUTERS/Lai Seng Sin 

Fireworks explode near Petronas Twin Towers during New Year celebrations in Kuala Lumpur, Malaysia January 1, 2019. REUTERS/Lai Seng Sin 

Workers are seen at the construction site of the south tower of the Haikou Twin Tower project in Hainan province, China January 10, 2018. Picture taken January 10, 2018. To match Insight HNA-HAINAN/ REUTERS/Matthew Miller 

The moon rises near the twin towers of Brazil's Congress in Brasilia, Brazil, May 11, 2017. REUTERS/Ueslei Marcelino 

The moon rises near the twin towers of Brazil's Congress in Brasilia, Brazil, May 11, 2017. REUTERS/Ueslei Marcelino 

Former World Trade Center employee Javier Castro Suarez pauses in the recently completed Oculus at the World Trade Center on the morning of the 15th anniversary of the 9/11 attacks in Manhattan, New York, U.S., September 11, 2016. REUTERS/Andrew Kelly TPX IMAGES OF THE DAY

A man arrives at the World Trade Center complex on the morning of the 15th anniversary of the 9/11 attacks in Manhattan, New York, U.S., September 11, 2016. REUTERS/Andrew Kelly 

Firefighters arrive for a memorial service at the World Trade Center complex on the morning of the 15th anniversary of the 9/11 attacks in Manhattan, New York, U.S., September 11, 2016. REUTERS/Andrew Kelly TPX IMAGES OF THE DAY

Firefighters arrive for a memorial service at the World Trade Center complex on the morning of the 15th anniversary of the 9/11 attacks in Manhattan, New York, U.S., September 11, 2016. REUTERS/Andrew Kelly 

Police officers stand outside Ground Zero on the morning of the 15th anniversary of the 9/11 attacks in Manhattan, New York, U.S., September 11, 2016. REUTERS/Andrew Kelly 

Anna Berlanga of Manhattan reads in the newly opened Liberty Park above Liberty Street on the World Trade Center site in the Manhattan borough of New York, U.S., June 29, 2016. REUTERS/Andrew Kelly

A woman and a child play in the newly opened Liberty Park above Liberty Street on the World Trade Center site in the Manhattan borough of New York, U.S., June 29, 2016. REUTERS/Andrew Kelly

A man sits in the newly opened Liberty Park above Liberty Street on the World Trade Center site in the Manhattan borough of New York, U.S., June 29, 2016. REUTERS/Andrew Kelly

Local resident Rachael Murray poses for a photo by Fran Murray in the newly opened Liberty Park above Liberty Street on the World Trade Center site in the Manhattan borough of New York, U.S., June 29, 2016. REUTERS/Andrew Kelly

A person walks through the newly opened Liberty Park above Liberty Street on the World Trade Center site in the Manhattan borough of New York, U.S., June 29, 2016. REUTERS/Andrew Kelly

An overview of the newly opened Liberty Park above Liberty Street on the World Trade Center site in the Manhattan borough of New York, U.S., June 29, 2016. REUTERS/Andrew Kelly

Local resident Eileen Rourke takes a phone call in the newly opened Liberty Park above Liberty Street on the World Trade Center site in the Manhattan borough of New York, U.S., June 29, 2016. REUTERS/Andrew Kelly

People walk through the newly opened Liberty Park above Liberty Street on the World Trade Center site in the Manhattan borough of New York, U.S., June 29, 2016. REUTERS/Andrew Kelly

Local businessman Claude F. Gallello passes through the newly opened Liberty Park above Liberty Street on the World Trade Center site in the Manhattan borough of New York, U.S., June 29, 2016. REUTERS/Andrew Kelly

A woman takes a photo from the newly opened Liberty Park above Liberty Street on the World Trade Center site in the Manhattan borough of New York, U.S., June 29, 2016. REUTERS/Andrew Kelly

Police officers walk in the newly opened Liberty Park above Liberty Street on the World Trade Center site in the Manhattan borough of New York, U.S., June 29, 2016. REUTERS/Andrew Kelly

(L-R) Port Authority's Chief of Major Capital Projects Steven Plate, General Manager of Retail at The Port Authority Mark Pucci and Port Authority Director for World Trade Center Construction Alan Reiss walk through in the newly opened Liberty Park above Liberty Street on the World Trade Center site in the Manhattan borough of New York, U.S., June 29, 2016. REUTERS/Andrew Kelly

Bella Truman, 9 and Zina DeVoe, 9, both of Manhattan play in the newly opened Liberty Park above Liberty Street on the World Trade Center site in the Manhattan borough of New York, U.S., June 29, 2016. REUTERS/Andrew Kelly

People tie ribbons to a railing at the "Survivor Tree" for the victims of the mass shooting in an Orlando nightclub during a public tribute to the victims at the 911 Memorial at the site of the World Trade Center in Manhattan, New York, U.S. June 16, 2016. REUTERS/Mike Segar 

A man ties ribbons to the "Survivor Tree" for the victims of the mass shooting in an Orlando nightclub during a public tribute to the victims at the 911 Memorial at the site of the World Trade Center in Manhattan, New York, U.S. June 16, 2016. REUTERS/Mike Segar 

911 Memorial President and CEO Joe Daniels stands with uniformed officers and others for a moment of silence during a public tribute to the victims of the mass shooting in an Orlando nightclub at the 911 Memorial at the site of the World Trade Center in Manhattan, New York, U.S. June 16, 2016. REUTERS/Mike Segar 

People pause for a moment of silence during a public tribute to the victims of the mass shooting in an Orlando nightclub at the 911 Memorial at the site of the World Trade Center in Manhattan, New York, U.S. June 16, 2016. REUTERS/Mike Segar 

A man and woman embrace during a public tribute to the victims of the mass shooting in an Orlando nightclub, at the 911 Memorial at the site of the World Trade Center in Manhattan, New York, U.S., June 16, 2016. REUTERS/Mike Segar TPX IMAGES OF THE DAY

People pause for a moment of silence during a public tribute to the victims of the mass shooting in an Orlando nightclub at the 911 Memorial at the site of the World Trade Center in Manhattan, New York, U.S. June 16, 2016. REUTERS/Mike Segar 

Uniformed officers from the NYPD and FDNY hold ribbons for the victims of the mass shooting in an Orlando nightclub during a public tribute to the victims at the 911 Memorial at the site of the World Trade Center in Manhattan, New York, U.S., June 16, 2016. REUTERS/Mike Segar 

People tie ribbons to a railing at the "Survivor Tree" for the victims of the mass shooting in an Orlando nightclub during a public tribute to the victims at the 911 Memorial at the site of the World Trade Center in Manhattan, New York, U.S. June 16, 2016. REUTERS/Mike Segar 

A woman pauses next to the "Survivor Tree" during a moment of silence for the victims of the mass shooting at an Orlando nightclub during a public tribute to the victims at the 911 Memorial at the site of the World Trade Center in Manhattan, New York, U.S. June 16, 2016. REUTERS/Mike Segar 

A man holds a single rose during a public tribute to the victims of the mass shooting at an Orlando nightclub at the 911 Memorial at the site of the World Trade Center in Manhattan, New York, U.S., June 16, 2016. REUTERS/Mike Segar 

People tie ribbons to a railing at the "Survivor Tree" for the victims of the mass shooting in an Orlando nightclub during a public tribute to the victims at the 911 Memorial at the site of the World Trade Center in Manhattan, New York, U.S., June 16, 2016. REUTERS/Mike Segar 

A girl ties a ribbon to a railing at the "Survivor Tree" for the victims of the mass shooting in an Orlando nightclub during a public tribute to the victims at the 911 Memorial at the site of the World Trade Center in Manhattan, New York, U.S., June 16, 2016. REUTERS/Mike Segar 

People pause for a moment of silence during a public tribute to the victims of the mass shooting in an Orlando nightclub at the 911 Memorial at the site of the World Trade Center in Manhattan, New York, U.S., June 16, 2016. REUTERS/Mike Segar 

Women hold hands tied together with ribbons for the victims of the mass shooting at an Orlando nightclub at the "Survivor Tree" during a public tribute for the victims at the 911 Memorial at the site of the World Trade Center in Manhattan, New York, U.S., June 16, 2016. REUTERS/Mike Segar 

People tie ribbons to the "Survivor Tree" for the victims of the mass shooting in an Orlando nightclub during a public tribute to the victims at the 911 Memorial at the site of the World Trade Center in Manhattan, New York, U.S., June 16, 2016. REUTERS/Mike Segar 

A man and woman embrace during a public tribute to the victims of the mass shooting in an Orlando nightclub, at the 911 Memorial at the site of the World Trade Center in Manhattan, New York, U.S., June 16, 2016. REUTERS/Mike Segar 

Demonstrators display inflatable dolls of Brazilian President Dilma Rousseff and former President Luiz Inacio Lula da Silva during a protest against Rousseff in front of the National Congress in Brasilia, Brazil, March 21, 2016. The twin congressional office towers show a laser message that reads "Impeachment". REUTERS/Adriano Machado 

A police officer patrols during a protest against Brazil's President Dilma Rousseff in front of the National Congress in Brasilia, Brazil, March 21, 2016. The twin congressional office towers show a laser mesage that reads "Out with Dilma". REUTERS/Adriano Machado 

A woman walks on a footbridge in front of twin buildings of Tencent's new headquarters under construction in Shenzhen, China March 15, 2016, before the company announces its annual results on March 17, 2016. Tencent Holdings Ltd, China's biggest social network and online entertainment firm, saw fourth-quarter revenue rise 45 percent, beating analyst estimates and recording the strongest growth in three years, driven by gaming and social media. REUTERS/Bobby Yip 

The sun sets behind the World Trade Center building in Mexico City March 14, 2016. Mexico City's government ordered traffic restrictions on Tuesday and recommended people stay indoors due to serious air pollution, issuing its second-highest alert warning for ozone levels for the first time in 13 years. REUTERS/Edgard Garrido TPX IMAGES OF THE DAY

The sun sets behind the World Trade Center building in Mexico City March 14, 2016. Mexico City's government ordered traffic restrictions on Tuesday and recommended people stay indoors due to serious air pollution, issuing its second-highest alert warning for ozone levels for the first time in 13 years. REUTERS/Edgard Garrido TPX IMAGES OF THE DAY

A view of the twin Torres de Colon (Columbus Towers) in Madrid, Spain, March 7, 2016. REUTERS/Paul Hanna 

A view of the twin Torres de Colon (Columbus Towers) in Madrid, Spain, March 7, 2016. REUTERS/Paul Hanna 

Dancer Laura Rae Bernasconi dances as she poses for photos at the World Trade Center Oculus transportation hub in the Manhattan borough of New York, March 3, 2016. REUTERS/Carlo Allegri TPX IMAGES OF THE DAY

Taxis wait to refuel at a Petronas fuel station with the Petronas Twin Towers in the background in Kuala Lumpur, Malaysia. Picture taken February 10, 2016. REUTERS/Olivia Harris