An American soldier walks ahead of an MKIV (Mark IV) British-made tank, circa 1918. (Photo by Hulton Archive/Getty Images)

A woman walks while carrying pineapples on her head on a street in Kampala, Uganda on January 12, 2021. (Photo by Baz Ratner/Reuters)

A woman walks past a mural amid the outbreak of the coronavirus disease (COVID-19) in Manchester, Britain, January 4, 2021. (Photo by Phil Noble/Reuters)

Women walk on a sidewalk in northern Tehran, Iran, Thursday, January 9, 2020. (Photo by Vahid Salemi/AP Photo)

A mahout walks a tusker along a busy road in Colombo, Sri Lanka on January 19, 2021. (Photo by Dinuka Liyanawatte/Reuters)

A couple who did not give their names walk in downtown Havana, February 2, 2015. (Photo by Alexandre Meneghini/Reuters)

A subway worker walks away after a train departed the station in central Pyongyang, North Korea May 7, 2016. (Photo by Damir Sagolj/Reuters)

People hold umbrellas as they walk past a flooded street in Taiyuan, Shanxi Province, China, July 19, 2016. (Photo by Reuters/China Daily)