A lady wearing a mask feeds pigeons in St James' Park, as the spread of the coronavirus disease (COVID-19) continues, London, Britain, April 5, 2020. (Photo by Henry Nicholls/Reuters)

An Ethiopian refugee who fled Tigray region, stands within the Fashaga camp on the Sudan-Ethiopia border, in Kassala state, Sudan on December 13, 2020. (Photo by Mohamed Nureldin Abdallah/Reuters)

A protester in an Elmo mask dances during the Justice for George Floyd Philadelphia Protest on Saturday, May 30, 2020. Demonstrators took to the streets across the United States to protest the death of Floyd, a black man who was killed in police custody in Minneapolis on May 25. (Photo by Matt Rourke/AP Photo)

People participate in the first day of Thingyan Water Festival in Naypyitaw, Myanmar on April 13, 2018. The annual water festival, known as Thingyan, features large groups of people congregating to celebrate the by splashing water and throwing powder at each other's faces as a symbol of cleansing and washing away the sins from the old year. It marks the start of the traditional New Year and is similarly celebrated in countries such as Myanmar, Thailand, Laos and Cambodia. (Photo by Hein Htet/EPA/EFE/Rex Features/Shutterstock)

The Greyfriars Bobby statue is pictured wearing a mask as the spread of the coronavirus disease (COVID-19) continues, in Edinburgh, Scotland, Britain, March 23, 2020. (Photo by Russell Cheyne/Reuters)

Pope Francis meets Spider-Man, who presents him with his mask, at the end of his weekly general audience with a limited number of faithful in the San Damaso Courtyard at the Vatican, Wednesday, June 23, 2021. The masked man works with sick children in hospitals. (Photo by Andrew Medichini/AP Photo)

Clouds reflect off the water as they pass over while SpaceX prepares their super heavy-lift Starship SN8 rocket for a test launch this week at the company's facilities in Boca Chita, Texas, U.S. December 1, 2020. (Photo by Gene Blevins/Reuters)

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