A rainbow lights up the Edinburgh skyline during the Scottish premiere of Global Rainbow a laser art installation by Yvette Mattern, part of Burns and Beyond, Edinburgh's flagship Burns festival on Wednesday March 24, 2021. (Photo by Jane Barlow/PA Images via Getty Images)





A view of an empty Gutter Lane in the City of London on Saturday, March 6, 2021. When the pandemic struck, about 540,000 workers vanished from London's financial hub almost overnight. The area known as “the City” became a ghost town as many people began working from home. A year on, most haven't returned to the business hub. While many people believe that post-pandemic workflow will become the new normal, skyscrapers are still rising, and city planners say they aren't worried about empty office blocks. (Photo by Alastair Grant/AP Photo)





A Pink Supermoon sets behind the Statue of Liberty in New York City on Monday, April 26, 2021. This week's supermoon is dubbed the “pink” moon because of its timing close to flower blooming season. (Photo by John Angelillo/UPI/Rex Features/Shutterstock)





The Shard in London, United Kingdom on January 7, 2021 which has been lit up blue in a renewed gesture of thanks to the NHS and frontline workers. (Photo by Yui Mok/PA Images via Getty Images)





The skyline with its financial district is photographed during sunset as the spread of the coronavirus disease (COVID-19) continues in Frankfurt, Germany, October 11, 2020. (Photo by Kai Pfaffenbach/Reuters)





Fireworks explode over Chao Phraya River during the New Year celebrations amid the spread of the coronavirus disease (COVID-19) in Bangkok, Thailand, January 1, 2021. (Photo by Athit Perawongmetha/Reuters)





A man wearing a face mask walks up a street as a tram drives by in Lisbon's old Alfama neighborhood, Thursday, February 4, 2021. A pandemic surge in January thrust Portugal into the spotlight as world's worst-hit country by size of population, according to Johns Hopkins University data, while it's vaccine program has inspired hope amid an extended lockdown. (Photo by Armando Franca/AP Photo)





In this December 31, 2016 file photo, the sun rises over the city skyline with the Burj Khalifa, the world's tallest building, on a foggy day in Dubai, United Arab Emirates. Dubai is tapping the global financial market to potentially raise billions of dollars for the first time in years. That's according to a bond prospectus seen on Tuesday, Sept. 1, 2020, by The Associated Press. It reveals the deepening toll of the coronavirus pandemic on Dubai's economy. (Photo by Kamran Jebreili/AP Photo/File)





The buildings of the banking district are seen in Frankfurt, Germany, Monday, March 22, 2021. German politics decides about further measures to avoid the outspread of the coronavirus on Monday. (Photo by Michael Probst/AP Photo)





The launch of a rocket into space is projected on Dubai's Burj Khalifa on February 9, 2021 as the UAE's “Al-Amal” – Arabic for “Hope” – probe's to Mars carries out a tricky manoeuvre to enter the Red Planet's orbit. A tense half-hour today will determine the fate of “Hope”. If successful, the probe which is designed to reveal the secrets of Martian weather, will become the first of three spacecraft to arrive at the Red Planet this month. (Photo by Giuseppe Cacace/AFP Photo)





A man crosses a street shortly after the end of the curfew in central Frankfurt, Germany, Tuesday, May 11, 2021. (Photo by Michael Probst/AP Photo)





The Tokyo Skytree, the tallest tower in Japan, is illuminated with the color of the Olympic Torch, to commemorate 100 days until the torch relay begins, Tuesday, December 15, 2020, in Tokyo. (Photo by Eugene Hoshiko/AP Photo)





An empty street as the 6 p.m curfew starts in Paris, Saturday January 16, 2021. The prime minister announced Thursday an extension of the 6 p.m.-to-6 a.m. curfew to cover the whole country, including zones, like Paris, where it previously hadn't started until 8 p.m. Shopping and all outdoor leisure activities stop at curfew, only short pet walks allowed. Working and commuting allowed with note from employer. Food deliveries but not takeout allowed. Fines for curfew-breakers. (Photo by Lewis Joly/AP Photo)





The Berlin Cathedral is illuminated during the Festival of Lights show in Berlin, Germany, September 11, 2020. (Photo by Joachim Herrmann/Reuters)





People cross a street decorated with banner like lanterns during the Mid-Autumn Festival at Chinatown on September 20, 2020 in Singapore. (Photo by Suhaimi Abdullah/Getty Images)