Shi'ite Muslim girls take part in a mourning procession to mark Ashura, the holiest day on the Shi'ite Muslim calendar, in Istanbul, Turkey, on July 16, 2024. (Photo by Dilara Senkaya/Reuters)

Students prepare a floral decorative design “Rangoli” during the celebrations to mark the annual harvest festival of 'Onam' at a school, in Chennai on September 10, 2024. (Photo by R.Satish Babu/AFP Photo)

A diver dressed as “Mermaid of the Serpent Depths” performs in front of a sign marking the Lunar New Year of the Snake inside an aquarium at Manila Ocean Park on January 28, 2025. (Photo by Jam Sta Rosa/AFP Photo)

A fire dancer makes a heart shape at the Bealtaine fire festival, marking the beginning of summer at the Hill of Uisneach in Rathnew, Ireland, on May 10, 2025. (Photo by Clodagh Kilcoyne/Reuters)

Crews paddle fast towards the turning mark during the annual Great Salem Maritime Cardboard Boat Regatta in Salem, Massachusetts on August 9, 2025. (Photo by Joseph Prezioso/Anadolu via Getty Images)

Vietnamese female commissioned officers of the signal force march during a parade marking their 70th National Day at Ba Dinh square in Hanoi, Vietnam September 2, 2015. (Photo by Reuters/Kham)

A polar bear plays with a pylon during celebrations marking its first birthday in an enclosure at Tierpark Hellabrunn zoo in Munich December 9, 2014. (Photo by Michaela Rehle/Reuters)

A masked reveller poses along the flooded St. Mark's Square during a period of seasonal high water and on the first day of carnival, in Venice February 1, 2015. (Photo by Stefano Rellandini/Reuters)