Students of the "Escola de Papai Noel do Brasil" (Brazil's school of Santa Claus) travel on a ferry through Guanabara bay, during their graduation ceremony in Rio de Janeiro, Brazil, November 10, 2015. The school holds 4 days' lessons in Santa-training, teaching Christmas carols, how to interact with children, and also how to wear the heavy red suit in Rio's typical 104-degree (40 degrees celsius) summer weather that is common around the holidays. (Photo by Pilar Olivares/Reuters)

U.S. players push head coach Adam Krikorian into the pool after they defeated the Netherlands in their women's water polo gold medal match during the Aquatics World Championships in Kazan, Russia, August 7, 2015. (Photo by Michael Dalder/Reuters)

Supporters of the presidential candidate Muhammadu Buhari and his All Progressive Congress hits another supporter with a motorbike during celebrations in Kano, Nigeria March 31, 2015. (Photo by Goran Tomasevic/Reuters)

Performers in costume kiss as they take part in the carnival on the main Parade day of the Notting Hill Carnival in west London on August 27, 2018. Nearly one million people are expected by the organizers Sunday and Monday in the streets of west London' s Notting Hill to celebrate Caribbean culture at a carnival considered the largest street demonstration in Europe. (Photo by Daniel Leal-Olivas/AFP Photo)

Adolf Hitler (left), German Nazi politician, in a deck chair next to is niece Angela (Geli) Raubal – around 1930. (Photo by Ullstein Bild/Ullstein Bild via Getty Images)

In this Friday, August. 17, 2018, photo, a North Korean waitress prepares to serve dinner to Chinese tourists at the Pegaebong hotel in Samjiyong in North Korea. Chinese businesspeople and tourists are once again flowing over the borders – several large tourist groups were in Samjiyon last week – and South Korean officials are seriously considering ways to help the North improve its roads and railways. (Photo by Ng Han Guan/AP Photo)

Model mum Valeria Garcia walks Marta Jakubowski's SS19 show wearing world first silent wearable breast pump: Elvie Pump at BFC Show Space on September 14, 2018 in London, England. (Photo by Eamonn M. McCormack/Getty Images for Elvie)

A guest poses against a video installation displayed at the Moncler catwalk show during Milan Fashion Week Spring 2019 in Milan, Italy, September 19, 2018. (Photo by Stefano Rellandini/Reuters)