David Nicholson, 21, surfs as "The Mask" during the ZJ Boarding House Haunted Heats Halloween Surf Contest in Santa Monica, California, United States, October 31, 2015. (Photo by Lucy Nicholson/Reuters)
A girl plays on a pile of discarded flowers outside a market, the day after the Diwali celebrations in Mumbai, India October 31, 2016. (Photo by Shailesh Andrade/Reuters)
A dog dressed in a costume takes part in the Pet's Halloween Day parade at Abtao Park in San Isidro, Lima, October 31, 2016. (Photo by Guadalupe Pardo/Reuters)
Two students in Birmingham, United Kingdom dressed as policewomen enjoy a takeaway on October 31, 2018. Halloween party-goers enjoyed one hell of a night for the annual fright-fest. (Photo by Caters News Agency)
Brazilian model and television personality Alessandra Ambrosio attends Alessandra Ambrosio And Darren Dzienciol's Horror In The Hills on October 31, 2019 in Beverly Hills, California. (Photo by Rochelle Brodin/Getty Images)
A bloody zombie baby head, brain and a hand made of gummy candy and red jelly are pictured as a woman works (rear) at the Zombie Gourmet homemade candy manufacturer on the outskirts of Mexico City October 30, 2015. (Photo by Carlos Jasso/Reuters)
Members of the Delirio dance company perform during the “Hechizo” (Spell) virtual show, inspired by the legend of the merry widow on Halloween night, in Cali, Colombia, 31 October 2020. (Photo by Ernesto Guzman Jr./EPA/EFE)
Two girls run through the heavy rain as people head out to Wind Street in Swansea, Wales to celebrate Halloween on Monday, October 31, 2022. (Photo by Robert Melen)