This photo taken on August 7, 2016 shows mahjong enthusiasts playing mahjong under water in a swimming pool at a diving club in the Chinese city of Chongqing. Only participants with proper diving certification were allowed to take part in the underwater competition. (Photo by AFP Photo/Stringer)

Schoolchildren look at a lifelike animatronics display of a dinosaur at the dinosaur-themed Zoo-rassic Park in Singapore on November 16, 2016. To raise awareness on the sixth mass extinction, the Singapore Zoo and River Safari displayed lifelike dinosaur animatronics where visitors can trail along the Dinosaur Valley which does not involve living animals. (Photo by Roslan Rahman/AFP Photo)

North Korean leader Kim Jong Un (3rd R) and wife Ri Sol Ju (4th L) enjoy an art performance given by the Chongbong Band to mark the 70th anniversary of the founding of the Workers' Party of Korea (WPK) in this undated photo released by North Korea's Korean Central News Agency (KCNA) in Pyongyang on October 19, 2015. (Photo by Reuters/KCNA)

A Sotheby's employee holds a rare 52.82-carat white diamond ring at Sotheby's auction house on April 12, 2010 in London, England. Price: 7 million USD. (Photo by Dan Kitwood/Getty Images)

Players, Sophie Powell, Cara Gainer and Gabriella Cowley and their caddies look on as a fire nears the 10th hole during day three of The Rose Ladies Series on The West Course in the first ever ladies professional event at Wentworth Golf Club on August 07, 2020 in Virginia Water, England. (Photo by Naomi Baker/Getty Images)

A survivor of a residential building's collapse lays in an ambulance in Bhiwandi, outskirts of Mumbai, India, 21 September 2020. According to reports, at least 10 people died and several are feared to be trapped under the rubble of the three-storey residential building. (Photo by Divyakant Solanki/EPA/EFE/Rex Features/Shutterstock)

A man with an American flag on his back and a Biden/Harris campaign flag rides an electronic skateboard through Black Lives Matter Plaza in front of the White House on Election Day, November 3, 2020 in Washington, DC. This year's historic presidential election between President Donald Trump, the incumbent, and Democratic nominee Joe Biden begins to come to a close even though final results are not expected for days to come as states take longer to count historic levels of mail-in ballots. (Photo by Samuel Corum/Getty Images)

People wearing fancy costumes walk near a skating rink past signs requesting to use protective face masks and to keep a social distance amid the coronavirus disease (COVID 19) outbreak, as heavy fog covers a square named after Soviet state founder Vladimir Lenin in Stavropol, Russia on December 1, 2020. (Photo by Eduard Korniyenko/Reuters)