Zhang Ze of China in action during his Oceania zone group1 match against Bernard Tomic of Australia of the 2011 Davis Cup on July 8, 2011 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

A woman in traditional clothes wears a pin showing North Korea's founder Kim Il-sung (L) and former leader Kim Jong-il, on her dress as she welcomes foreign reporters to a temple during a government organised tour just outside Pyongyang October 8, 2015. North Korea is getting ready to celebrate the 70th anniversary of the founding of its ruling Workers' Party of Korea on October 10. (Photo by Damir Sagolj/Reuters)

In this April 7, 2015 photo, a tourist peers through the door of a jail cell inside the now empty Garcia Moreno prison during a guided tour for the public in Quito, Ecuador. According to tour guides, this cell was nicknamed “Los Polillas”, or “The Moths”. Here, in a room designed to hold two prisoners, about 15 inmates with drug addictions were locked in overnight by the prison gangs that controlled daily life. The locked-in prisoners were also known to prostitute themselves to get access to drugs. (Photo by Dolores Ochoa/AP Photo)

A participant has his body painted before a regional bodybuilding championship in Stavropol, southern Russia, April 10, 2016. (Photo by Eduard Korniyenko/Reuters)

A man prepares tea at a roadside shop on a flooded street in Kolkata, India, August 11, 2016. (Photo by Rupak De Chowdhuri/Reuters)

Victory day celebrations in Lambeth London on May 8, 1945 as man dresses up as Hitler in a pub saluting with beer. (Photo by Trinity Mirror/Mirrorpix/Alamy Stock Photo)

In this picture made available Thursday July 11, 2013 a zoo-keeper presents three of twelve ferret babies at Eekholt Zoo in Grossenaspe, Germany, Wednesday July 10, 2013. The ferret babies were born May 25, 2013. (Photo by Markus Scholz/AP Photo/Dpa)

A Kurdish girl wears her relative's assault rifle and ammunition belt as she waits at the Iraqi Kurdish Shaqouli checkpoint, some 35 kilometres east of Mosul, on November 10, 2016. Since the start of the Mosul offensive the Kurds have moved their border some 10 kms closer to Iraq's second city, marking it out with a line in the sand. (Photo by Odd Andersen/AFP Photo)