An Aymara woman with a sheep waves to the crowd during a Christmas parade in La Paz, Bolivia December 12, 2015. (Photo by David Mercado/Reuters)

People dressed as Hungarian Hussars fire a cannon during re-enactment of the battle against Austrian soldiers of the Habsburg dynasty in Tapiobicske, Hungary April 4, 2016. (Photo by Laszlo Balogh/Reuters)

A girl reacts during a rehearsal for the Independence Day military parade in central Kiev, Ukraine, August 19, 2016. (Photo by Valentyn Ogirenko/Reuters)

A World War II re-enactor dressed as Red Army soldiers rests after a staged battle to mark the liberation of the city of Ostrava by Red Army from the Nazi invaders in 1945, Czech Republic, Thursday, April 30, 2015. (Photo by Sergei Grits/AP Photo)

Angel Paz, dressed as a calavera, waits with family for the start of the Gran Procession of the Catrinas, to mark the upcoming Day of the Dead holiday, in Mexico City, Sunday, October 23 2016. (Photo by Anita Baca/AP Photo)

A young reveller participates in the annual Trinidad and Tobago Red Cross Society's Children's Carnival Competition at the Queen's Park Savannah in Port-Of-Spain, Trinidad and Tobago February 18, 2017. (Photo by Andrea De Silva/Reuters)

A Cambodian resident wearing a mask attends a ceremony at Pring Ka-Ek village on the outskirts of Phnom Penh, Cambodia, 09 June 2016. Villagers organized a ceremony to continue their local traditions by paying respect to the Neakta Pring Ka-Ek (Spirit house) to prevent them from diseases and to achieve abundant rice harvests and other agricultural yields. (Photo by Mak Remissa/EPA)

Women dressed up as Vikings attend the annual Viking festival of Catoira in north-western Spain on August 5, 2018. The festival re-enacts past Viking raids in the area and is celebrated annually on the first Sunday of August. (Photo by Miguel Vidal/Reuters)