A runner competes in the Great Wall Marathon at the Huangyaguan Great Wall outside Beijing, China, May 18, 2019. (Photo by Thomas Peter/Reuters)

Members of the U.S. Army's Golden Knights parachute team perform during the Bethpage Air Show as part of a Memorial Day event at Jones Beach on Long Island, New York, U.S., May 25, 2019. (Photo by Johnny Milano/Reuters)

Sharafkhaneh port and lake Urmia. Masoud Ghadiri (Iran). The summer Milky Way is very prominent in this photo. On the galaxy zone, Saturn is located besides the Lagoon nebula. On the right of the horizon, you can see the extreme light pollution of Urmia, which is caused by ever-increasing city development. (Photo by Masoud Ghadiri/National Maritime Museum)

Model Elise Daniels dons a Balenciaga suit while surrounded by street performers in Paris, France in 1948. (Photo by Richard Avedon/Victoria and Albert Museum London/The Guardian)

A man walks inside the flooded Cochin international airport after the opening of Idamalayar, Cheruthoni and Mullaperiyar dam shutters following heavy rain, on the outskirts of Kochi, India, August 15, 2018. (Photo by Sivaram V/Reuters)

Supporters of Fernando Haddad react to a supporter (in yellow) of Jair Bolsonaro during a runoff election in Rio de Janeiro, Brazil on October 28, 2018. Bolsonaro, a brash far-right congressman who has waxed nostalgic for Brazil's old military dictatorship, won the presidency of Latin America's largest nation Sunday as voters looked past warnings that the former army captain would erode democracy and embraced a chance for radical change after years of turmoil. (Photo by Sergio Moraes/Reuters)

Spacewalker Mark Vande Hei took his own photograph during the first spacewalk of 2018, on January 23, 2018. These sky-high pictures are better known as “space-selfies”. (Photo by Mark Vande Hei/NASA)

Leslie Cliff and his wife Violet, English figure skating pair. Olympic games of Garmisch-Partenkirchen (Germany), 1936. (Photo by Roger Viollet Collection/Getty Images)