U.S. President Barack Obama speaks at the foot of the Edmund Pettus Bridge in Selma, Alabama March 7, 2015. With a nod to ongoing U.S. racial tension and attempts to limit voting rights, Obama declared the work of the Civil Rights Movement advanced but unfinished on Saturday on a visit to the Alabama bridge that spawned a landmark voting law. REUTERS/Tami Chappell (UNITED STATES - Tags: POLITICS ANNIVERSARY SOCIETY)
A participant dances as approximately 70,000 people from all over the world gathered for the annual Burning Man arts and music festival in the Black Rock Desert of Nevada, U.S. on August 29, 2017. (Photo by Jim Urquhart/Reuters)
Models wait backstage ahead of the Eugenia Kim Spring/Summer 2018 fashion show during New York Fashion Week in New York, U.S., September 10, 2017. (Photo by Amr Alfiky/Reuters)
U.S. President Donald Trump boards Air Force One to depart for Vietnam from Beijing Airport in Beijing, China on November 10, 2017. (Photo by Jonathan Ernst/Reuters)
A participant tries to stay warm during the Macy's Thanksgiving Day Parade in Manhattan,New York, U.S., November 22, 2018. (Photo by Brendan McDermid/Reuters)
Actors dressed as a “Yeti” attend a promotional event for Travel Channel's “Expedition Unknown: Hunt for the Yeti” in Manhattan, New York City, U.S., October 4, 2016. (Photo by Brendan McDermid/Reuters)
A reveller takes part with her dogs in the annual halloween dog parade at Manhattan’s Tompkins Square Park in New York, U.S. October 22, 2016. (Photo by Eduardo Munoz/Reuters)