Protesters run for cover after riot police fired tear gas towards the bridge they were climbing down to the road below, to escape from Hong Kong Polytechnic University campus and from police, in Hung Hom district in Hong Kong on November 18, 2019. Dozens of Hong Kong protesters escaped a besieged university campus on November 18 by lowering themselves on a rope from a footbridge to a highway, AFP video showed. Once on the road they were seen being picked up by waiting motorcyclists. (Photo by Anthony Wallace/AFP Photo)

Many powerful photographs have been made in the aftermath of the devastating collapse of a garment factory on the outskirts of Dhaka, Bangladesh. But one photo, by Bangladeshi photographer Taslima Akhter, has emerged as the most heart wrenching, capturing an entire country’s grief in a single image... Photo: Two victims amid the rubble of a garment factory building collapse in Savar, near Dhaka, Bangladesh, April 25, 2013. (Photo by Taslima Akhter)

A CRH train is seen passing through Nanjing South Railway Station, which is part of the Beijing-Shanghai High-Speed Railway Line, on March 27, 2011 in Nanjing, Jiangsu Province of China. The High-Speed railway line is 1,318 kilometres long, running between Beijing and Shanghai. The line will open on June 10, 2011. (Photo by ChinaFotoPress/Getty Images)

A man rides a motorcycle along a street in the snow in Altay, Xinjiang Uighur Autonomous region, February 9, 2016. (Photo by Reuters/Stringer)

Girls play with live Teacup pigs, a rare pet in the country, at the start of celebrations leading to the Lunar New Year, Friday, February 1, 2019 at Lucky Chinatown Plaza mall in Manila, Philippines. The upcoming Year of the Pig represents abundance, diligence and generosity. (Photo by Bullit Marquez/AP Photo)

An “asparagus eating contest” made of asparagus and carved pumpkins is on display on the sidelines of the Giant Vegetable Competition in Klaistow, northeastern Germany, on September 20, 2015. The vegetable giants compete in seven categories. (Photo by Bernd Settnik/AFP Photo)

The 33-year-old Norwegian rightwing extremist Anders Behring Breivik, who killed 77 people in twin attacks in Norway last year, arrives at a courtroom. (Photo by Heiko Junge/AP File Photo)

A young man “painting” the Eiffel Tower. (Photo by Keystone/Getty Images). 9th May 1970