St Andrews University students skinny dip in the sea as May Day celebrations in St Andrews, Scotland on April 30, 2017. Hundreds of revellers ditched their clothes and bravely jumped into the bitterly cold North Sea. (Photo by Alamy Stock Photos)

Russian honor guard soldiers warm up prior a rehearsal for the Victory Day military parade in St. Petersburg, Russia, Wednesday, May 3, 2017. The parade will take place at Dvortsovaya (Palace) Square on May 9, to celebrate 72 years after the victory in WWII. (Photo by Dmitri Lovetsky/AP Photo)

A man carries his dog as he prays during Vesak Day, an annual celebration of Buddha's birth, enlightenment and death, at Wat Yai Chai Mongkhon temple in Ayutthaya, Thailand, May 10, 2017. (Photo by Athit Perawongmetha/Reuters)

A bonnet macaque sits on consecrated idols of snakes as it drinks milk offered by a devotee during the Hindu festival of Nag Panchami, which is celebrated by worshipping snakes to honour the serpent god, inside a temple on the outskirts of Bengaluru, India, July 27, 2017. (Photo by Abhishek N. Chinnappa/Reuters)

In this Sunday, August 5, 2018 photo, a dancer winces in pain as she is whipped by a fellow dancer in an adaptation of the Inca warrior dance known as “Kachampa”, during celebrations honoring Our Lady of Copacabana, in Cuzco, Peru. (Photo by Martin Mejia/AP Photo)

A guy is paraded through the streets of Lewes in East Sussex, southern England, on November 5, 2018, during the traditional Bonfire Night celebrations. Thousands of people attend the annual parade through the narrow streets until the evening comes to an end with the burning of an effigy or “guy”, usually representing Guy Fawkes, who died in 1605 after an unsuccessful attempt to blow up The Houses of Parliament. (Photo by Daniel Leal-Olivas/AFP Photo)

Ethnic Miao women in traditional costumes take part in a tug of war as they celebrate the local ethnic Miao's new year at a village in Rongshui Miao Autonomous county, Guangxi Zhuang Autonomous Region, China January 5, 2019. (Photo by Reuters/China Stringer Network)

In this Tuesday, February 5, 2019, photo, fire-eater performs during celebrations of the Lunar New Year in the Chinatown district of Manila, Philippines. This year is the Year of the Earth Pig in the Chinese Lunar calendar and is supposed to represent abundance, diligence and generosity. (Photo by Bullit Marquez/AP Photo)