A masked reveller poses during the Venice Carnival in Venice, Italy February 17, 2017. (Photo by Alessandro Bianchi/Reuters)

A face mask discarded in a forest in the Taunus region near Frankfurt, Germany, Sunday, October 18, 2020. (Photo by Michael Probst/AP Photo)

Residents wearing masks rest in the shade near a graffiti of a dragon, Friday, May 27, 2022, in Beijing. (Photo by Ng Han Guan/AP Photo)

“The girl behind the camera and the girl in front of the camera”, May 2012. (Photo by: Mandy Rosen; Source: Flickr)

Seljalandsfoss waterfall, located in Iceland. Seljalandsfoss is one of the most famous waterfalls of Iceland. This waterfall of the river Seljalandsá drops 60 metres (200 ft) over the cliffs of the former coastline. It's possible to go behind the waterfall. (Photo by HotSpot Media)

A moon appears behind a windmill a day before the supermoon is full on September 8, 2014 in Consuegra, in Toledo province, Spain. Consuegra belongs to a region made famous by the novel “Don Quijote de la Mancha” (Don Quixote) writed by Miguel De Cervantes. Some of the windmills belong to the 16th century. (Photo by Pablo Blazquez Dominguez/Getty Images)

A lunar eclipse appears behind a gargoyle atop the old red Dallas County Courthouse early Wednesday morning, October 8, 2014. The moon appears orange or red, the result of sunlight scattering off Earth's atmosphere. This is known as the blood moon. (Photo by Tom Fox/AP Photo/The Dallas Morning News)

A Kenyan model Ajuma Nasanyana waits behind the scenes before the fashion show showcasing African fashion and culture during a gala marking the launch of a book called “African Twilight: The Vanishing Rituals and Ceremonies of the African Continent” at the African Heritage House in Nairobi, Kenya on March 3, 2019. (Photo by Baz Ratner/Reuters)