A person smokes marijuana as marijuana enthusiasts mark the informal annual cannabis holiday, 4/20 (four-twenty), corresponding to the numerical figure widely recognized within the cannabis subculture as a symbol for all things related to marijuana, in Hyde Park in London, Britain on April 20, 2023. (Photo by Maja Smiejkowska/Reuters)

Performers take part in a procession as part of the Samhuinn Fire Festival on October 31, 2024 in Edinburgh, Scotland. The Samhuinn Fire Festival is a modern take on an ancient Celtic festival, marking the transition between summer and winter with fire-dancing, drums, acrobatics, and theatre performances. (Photo by Jeff J. Mitchell/Getty Images)

A reveller participates in a parade during a carnival to mark the annual Orthodox St. Vasilij Day, the beginning of the Orthodox New Year, in the village of Vevcani, North Macedonia, in this still image taken from a picture, on January 13, 2025. (Photo by Ognen Teofilovski/Reuters)

Anda Oliveira, 34, enjoys a waterfall in the Tijuca National Park, one of the world's biggest urban forests, marking the World Water Day in Rio de Janeiro, Brazil on March 15, 2024. (Photo by Pilar Olivares/Reuters)

Russian army servicewomen march during the Victory Day military parade at the Palace Square in St. Petersburg, Russia, Thursday, May 9, 2024, marking the 79th anniversary of the end of World War II. (Photo by Dmitri Lovetsky/AP Photo)

In this photo made late Saturday, August 9, 2014, in Keelung, Taiwan, a traditional Chinese dance troupe performs during a parade marking the beginning of the Chinese folklore's mid-summer's Ghost Month Festival. Fourteen days into the seventh month of the lunar calendar, August 9, in 2014, marks the traditional Chinese Ghost Month where the gates of the underworld are opened and spirits of the deceased are set free to roam the world of the living. The month long festivities are aimed to please the roaming spirits. (Photo by Chiang Ying-ying/AP Photo)

Liz Clay competes against Michelle Jenneke in the Womens 100m Hurdles final during the 2024 Sydney Track Classic at ES Marks Athletic Field on March 23, 2024 in Sydney, Australia. (Photo by Cameron Spencer/Getty Images)

A man applies colored powder on his friend's face during celebrations marking Holi, the Hindu festival of colors, in Mumbai, India, Tuesday, March 7, 2023. The festival heralds the arrival of spring. (Photo by Rajanish Kakade/AP Photo)