2016 Rio Olympics, Athletics, Olympic Stadium, Rio de Janeiro, Brazil on August 19, 2016. A performer is pictured before the event. (Photo by Dylan Martinez/Reuters)





People watch the annual fireworks display during a visit by U.S. President Barack Obama and his family in Oak Bluffs, Massachusetts, U.S., August 19, 2016. (Photo by Joshua Roberts/Reuters)





Fans cheer while watching a broadcast of Jamaica's Usain Bolt running to win the Jamaica team gold in the Rio Olympic Games 4x100 metres relay, in Kingston, Jamaica, August 19, 2016. (Photo by Gilbert Bellamy/Reuters)





Participants pose at the Arnold Classic Asia Multi-Sport Festival, inaugurated by actor and former professional bodybuilder Arnold Schwarzenegger, in Hong Kong, China August 20, 2016. (Photo by Bobby Yip/Reuters)





The names of gold medal winners at the Sydney Olympics in 2000 are reflected in a metal strip on the ground, illuminated by a re-lighting of the Sydney Olympic cauldron on August 20, 2016 to celebrate the end of the Rio Olympic Games. (Photo by Jason Reed/Reuters)





A dinghy overcrowded by African migrants is seen drifting off the Libyan coast in Mediterranean Sea August 20, 2016. (Photo by Giorgos Moutafis/Reuters)





A sniper takes position as he secures a rally to show support to a political council formed by the Houthi movement and the General People's Congress party to unilaterally rule Yemen by both groups, in the capital Sanaa August 20, 2016. (Photo by Khaled Abdullah/Reuters)





A street performer entertains tourists by playing his flame-throwing tuba on the South Bank in London, Britain August 20, 2016. (Photo by Peter Nicholls/Reuters)





An activist with the Rio de Paz (Rio in Peace) non-governamental organization participates in a protest by standing shackled next to a mock favela as they protest the Rio 2016 Olympics, along Copacabana Beach in Rio de Janeiro, August 20, 2016. (Photo by Ricardo Moraes/Reuters)





A Volkswagen Beetle car, reconstructed like a police car, is seen at the so called “Sunshinetour 2016” in Travemuende at the Baltic Sea, August 20, 2016. (Photo by Fabian Bimmer/Reuters)





A portrait artist of “Place du Tertre” paints a portrait of a young tourist, close to Montmartre's Sacre Coeur Church in Paris, France August 20, 2016. (Photo by Pascal Rossignol/Reuters)





Brandy Cormiar surveys her brother-in-law's flood damaged home in Sorrento, Louisiana, U.S., August 20, 2016. (Photo by Jonathan Bachman/Reuters)





Football Soccer, Dynamo Dresden vs RB Leipzig, German Cup (DFB Pokal), DDV-Stadion, Dresden, Germany on August 20, 2016. Dynamo Dresden's fans display banners and wave flags. (Photo by Axel Schmidt/Reuters)





A woman walks during a pouring rain in Manhattan, New York, U.S., August 20, 2016. (Photo by Eduardo Munoz/Reuters)





Pakistani Muslim girls recite the verses of the Quran, Islam's holy book, at an Islamic seminary in Karachi, Pakistan, Saturday, August 20, 2016. (Photo by Shakil Adil/AP Photo)





Lance Thomas, of Nome, Alaska, watches a herd of wild musk oxen, which were roaming the Nome-Council Road, along the Bering Sea coast just outside Nome, Alaska, Saturday, August 20, 2016. (Photo by Mark Thiessen/AP Photo)





Alicia Landa's dog Hooper climbs on her back as they swim in a pool during the Corpus Christi Parks & Recreation Department's Annual Doggy Dip in Corpus Christi, Texas, on Saturday, August 20, 2016. (Photo by Courtney Sacco/Corpus Christi Caller-Times via AP Photo)





Josie Arias, of Los Angeles, talks on her phone as she inspects a rack of clothes at Kanye West's “Pablo” pop-up shop on Friday, August 19, 2016, in Los Angeles. The rapper-turned-fashion mogul announced plans to open 21 stores worldwide just for this weekend to sell clothing based on his latest album, “The Life of Pablo”. (Photo by Chris Pizzello/Invision/AP Photo)





A shopper shows her “The Life of Pablo” merch to NYPD officers after visiting a pop up store featuring fashion by Kanye West in Manhattan, New York, U.S., August 19, 2016. (Photo by Eduardo Munoz/Reuters)





A shopper shows her “The Life of Pablo” merchandise to NYPD officers after visiting a pop up store featuring fashion by Kanye West in Manhattan, New York, U.S., August 19, 2016. (Photo by Eduardo Munoz/Reuters)





The world's highest and longest glass-bottomed bridge is seen above a valley in Zhangjiajie in China's Hunan Province on August 20, 2016. It connects two mountain cliffs in what are known as the Avatar mountains (the film was shot here) in Zhangjiajie, Hunan province. Completed in December, the 430m-long bridge cost $3.4m to build and stands 300m above ground, state news agency Xinhua reported. It has been paved with 99 panes of three-layered transparent glass. And according to officials, the 6m-wide bridge – designed by Israeli architect Haim Dotan – has already set world records for its architecture and construction. (Photo by Fred Dufour/AFP Photo)





Racegoers shelter from the wind and rain, during day four of the 2016 Yorkshire Ebor Festival, at York Racecourse, in York, England, Saturday August 20, 2016. (Photo by Anna Gowthorpe/PA via AP Photo)





Relatives grieve at hospital August 20, 2016 in Gaziantep following a late night militant attack on a wedding party in southeastern Turkey. The governor of Gaziantep said 22 people are dead and 94 injured in the late night militant attack. (Photo by Ahmed Deeb/AFP Photo)





This picture taken on August 9, 2016 shows North Korean defector Choi Sung-Guk editing his weekly online comic cartoon called “Rodong Simmun (Labour Interrogation)” at his office in Seoul. When North Korean defector Choi Sung-Guk decided it was time to go public with his experiences, he avoided the well trodden “harrowing memoir” route in favour of a cartoon strip. (Photo by Jung Yeon-Je/AFP Photo)





Russian President Vladimir Putin poses for a family photo with participants of the Tavrida (Taurida) national youth educational forum in Bakal Spit, Crimea, August 19, 2016. (Photo by Alexei Nikolsky/Reuters/Sputnik/Kremlin)





Indian paramilitary soldiers patrol during curfew in Srinagar, Indian-controlled Kashmir, Friday, August 19, 2016. The Himalayan region has been under curfew for almost six weeks as the largest street protests in years erupted after Indian troops killed a top rebel leader, and security was tightened further in the week preceding India's Independence day. (Photo by Dar Yasin/AP Photo)





A man wearing a water-filled helmet in which a goldfish swims performs an act titled “Aquaman” during the Night Festival 2016 in Singapore, 20 August 2016. The ninth edition of the festival will run from 19 to 27 August and features installations and performances by a range of international and local artists. (Photo by Wallace Woon/EPA)