Demonstrators perform a dance in front of riot policemen during a march called by students to request changes in the education system in Santiago, Chile September 5, 2017. (Photo by Ivan Alvarado/Reuters)
Gremio fans celebrate after their team won the Copa Libertadores final match at the Arena do Gremio in Porto Alegre, Brazil on November 29, 2017. (Photo by Diego Vara/Reuters)
Revellers kiss under a rainbow flag during the Gay Pride parade along Paulista Avenue in Sao Paulo, Brazil on June 3, 2018. (Photo by Nacho Doce/Reuters)
A woman covers her face as men throw colored powder at her during “Lathmar Holi” at the village of Barsana in the northern Indian state of Uttar Pradesh March 9, 2014. (Photo by Anindito Mukherjee/Reuters)
A policewoman reacts as she falls off from a motorcycle while taking part in a rehearsal for Independence Day celebrations, in Ahmedabad, India August 4, 2017. (Photo by Amit Dave/Reuters)
Indian Air Force personnel parade during the 85th Air Force Day celebrations at Hindon Air Force base in Ghaziabad on October 8, 2017. (Photo by AFP Photo/Stringer)
School teachers and staff members take part during an active shooter training at James I. O'Neill High School in Highland Falls, New York, U.S., December 12, 2017. (Photo by Eduardo Munoz/Reuters)