A woman walks inside a building in downtown Havana, Cuba April 21, 2016. (Photo by Alexandre Meneghini/Reuters)

A ring-tailed lemur sunbakes at Melbourne Zoo in Melbourne, Victoria, Australia on December 21 2016. (Photo by Julian Smith/EPA)

English singer Dua Lipa poses for a barely-there bikini mirror selfie on vacation on December 21, 2025. (Photo by dualipa/Instagram)

Dancers perform “El torito”, during a celebration honoring Saint Thomas, the patron saint of Chichicastenango, Guatemala, Saturday, December 21, 2019. The Feast of Saint Thomas draws international tourists with its colorful pageantry, but at its heart is a religious celebration melding Catholic and indigenous traditions that culminates on Dec. 21. (Photo by Moises Castillo/AP Photo)

Underground dancers dressed in Spiderman costumes perform in the subway of Saint Petersburg late on May 21, 2021. (Photo by Olga Maltseva/AFP Photo)

An Afghan boy carrying empty plastic cans, walks along a street in Kabul on December 21, 2023. (Photo by Wakil Kohsar/AFP Photo)

Christie Brinkley is seen walking in midtown on August 21, 2019 in New York City. (Photo by Raymond Hall/GC Images)

A man and his son ride a horse at Tahrir Square in Sanaa, Yemen on January 21, 2021. (Photo by Khaled Abdullah/Reuters)