Participants wearing historical costumes ride their high-wheel bicycles during the annual penny farthing race in Prague, Czech Republic November 5, 2016. (Photo by David W. Cerny/Reuters)
Men work at Makala gold mine camp near the town of Mongbwalu in Ituri province, eastern Democratic Republic of Congo on April 7, 2018. (Photo by Goran Tomasevic/Reuters)
People dressed as characters from the computer game “World of Warcraft” walk across a field near the town of Kamyk nad Vltavou, Czech Republic, April 28, 2018. (Photo by David W. Cerny/Reuters)
Female of pygmy hippopotamus called Malaya from Netherlands in zoo in Dvur Kralove nad Labem, Czech Republic, February 22, 2016. (Photo by David Tanecek/CTK via ZUMA Press)
Michal Navratil of the Czech Republic performs after the men's 27 meter high dive final at the Swimming World Championships in Kazan, Russia, Wednesday, August 5, 2015. (Photo by Denis Tyrin/AP Photo)
Performers wearing traditional outfits from Gujarat state perform during a press preview of tableaux participating in the forthcoming Republic Day parade in New Delhi on January 22, 2020. (Photo by Prakash Singh/AFP Photo)
A woman takes part in a four-minute flash mob pillow fight at the Old Town Square in Prague, Czech Republic, December 22, 2016. (Photo by David W. Cerny/Reuters)