A woman laughs as she takes part in the “Domingo Fareleiro” (Floury Sunday in Galician) festival in the village of Xinzo de Limia, northwestern Spain, on January 21, 2018. Domingo Fareleiro (Floury Sunday) takes place annually in Xinzo de Limia, Spain, in a unique celebration that gives the starting signal for a long festive period known as Entroido, or Carnival. (Photo by Miguel Riopa/AFP Photo)

A girl in a swimsuit participates in the BoogelWoogel alpine carnival at the Rosa Khutor Alpine Resort in Krasnaya Polyana, Sochi, Russia on March 31, 2018. (Photo by Artur Lebedev/TASS)

A boy dressed as the Star Wars character Darth Vader attends a Star Wars themed church service, at the Zion Church in Berlin, Sunday, December 20, 2015. About 500 people, some carrying light saber props or wearing Darth Vader masks, attended the service, more than twice as many as usual on a Sunday. (Photo by Markus Schreiber/AP Photo)

A fellow officer comes to the aid of injured patrolman C.V. Satt, who was pelted with rocks and beer bottles during a clash between police and relief demonstrators in Denver September 23, 1935. (Photo by Henry G. Eisenhand/AP Photo)

Nationalist youths throw bottles at police officers after the annual Orange march on July 12, 2016 in Belfast, Northern Ireland. The controversial Ardoyne interface is a flash point between the Catholic and Protestant communities with trouble flaring in the area frequently during the so called marching season. The Protestant Orange bands from the nearby area have been stopped from parading past the Catholic Ardoyne for the past three years. (Photo by Charles McQuillan/Getty Images)

Joshua Patino stands on a ladder to put finishing touches on a giant dinosaur exhibit at PAX East in the Boston Convention and Expo Center, Thursday, April 21, 2016, in Boston. PAX East, an annual celebration of gaming culture, is expected to draw tens of thousands of visitors Friday through Sunday. It's a place where serious gamers can preview unreleased video games and devices, compete in tournaments, hear live music and meet others for whom gaming is a way of life. (Photo by Elise Amendola/AP Photo)

A visitor looks at a sculpture by a Chinese artist Chen Wenling at the "Sculpture by the Sea" exhibition which runs along the Bondi to Tamarama coastal walk in Sydney on October 22, 2015. The world's largest annual free-to-the-public outdoor sculpture exhibition runs from October 22 – November 8 this year and features over 107 sculptures by artists around the world. (Photo by Saeed Khan/AFP Photo)

A camel herder removes the rope from the mouth of a camel at the Pushkar Fair in Rajasthan, India, November 22, 2015. Thousands of animals, mainly camels, are brought to the annual fair to be traded. (Photo by Jitendra Prakash/Reuters)