Muslim pilgrims pray around the holy Kaaba at the Grand Mosque, during the annual haj pilgrimage in Mecca September 30, 2014. (Photo by Muhammad Hamed/Reuters)
The Elf on the Shelf balloon floats down Sixth Avenue during the 88th Annual Macy's Thanksgiving Day Parade in New York November 27, 2014. (Photo by Andrew Kelly/Reuters)
A reveller is covered in tomato pulp and juice while participating in the annual Tomatina festival on August 31, 2011 in Bunol, Spain. An estimated 35,000 people threw 120 tons of ripe tomatoes in the world's biggest tomato fight held annually in this Spanish Mediterranean town. (Photo by Denis Doyle/Getty Images)
Beluga the bog poses as Britney Spears during the 17th annual Tompkins Square Halloween Dog Parade October 28, 2007 in New York City. The event is the largest dog Halloween party in the United States with an annual attendance of over 400 costumed dogs. (Photo by Mario Tama/Getty Images)
Polar Bear club swimmers take their annual swim in the sea at Coney Island in New York City on January 1, 2014. (Photo by Curtis Means/ACE/INFphoto.com)
Costumed revellers walk in the streets of Lucerne during the annual carnival parade on Rose Monday March 3, 2014. (Photo by Sigi Tischler/AP Photo/Keystone)
A model poses during the annual World Bodypainting Festival in Poertschach, Austria, July 3, 2015. The event takes place from July 3 to 5 at lake Woerthersee in Austria's southern Carinthia province. (Photo by Heinz-Peter Bader/Reuters)
Participants lay down on a street covered by coloured powder during the annual Bangkok Color Run in Bangkok, Thailand April 1, 2017. (Photo by Athit Perawongmetha/Reuters)