Reuters photographers Carlos Barria and Bobby Yip photographed protestors and details of life on the barricades, asking demonstrators what their role was in the movement, and what they wanted to happen. Here: Crystal, 15, a part-time boutique sales assistant, poses on Nathan Road in Mongkok shopping district in Hong Kong October 7, 2014. Holding a walkie talkie for fast communication with other supporters, Crystal said, “I am not demanding Chief Executive Leung Chun-ying to quit, but (want) to protect protesters from being threatened badly by opponents and the police”. (Photo by Bobby Yip/Reuters)

Super-cell thunderstorms, whirling tornados and lightning bolts illuminating the sky – these photos capture the terrifying brilliance of American storms. (Photo by Brandon Goforth/Solent News & Photo Agency)

The Dynasphere, an electrically-driven wheel, invented by Mr. J. A. Purves of Taunton and his son. It had 2.5 horse power and once attained a speed of 25 mph. (Photo by Fox Photos/Getty Images). 1932

Eduardo Alan of Argentina and Pampa Racing gets his Yamaha motorbike stuck in the sand during stage five of the 2012 Dakar Rally from Chilechito to Fiambala on January 5, 2012 in Fiambala, Argentina. (Photo by Bryn Lennon/Getty Images)

“What did I know about Chechnya before last week? For someone who grew up in the 1990s the very word Chechnya meant a string of grainy images on TV showing people in battered camouflage outfits, shooting at each other amid destruction and ruin. Fear, wahhabis, Shamil Basayev, terrorism, mountains: these were the words that used to spring to my mind when someone mentioned Chechnya”. – Maxim Shemetov. Photo: Special forces officers stand guard during a government-organised event marking Chechen language day in the centre of the Chechen capital Grozny April 25, 2013. (Photo by Maxim Shemetov/Reuters)

A comedic photo of a cheetah appearing to find something hilarious by Dutton Robert for the Comedy Wildlife Photo Awards 2016, South Africa, April, 2012. (Photo by Dutton Robert/Barcroft Images/Comedy Wildlife Photo Awards)

Local residents crowd a swimming pool during a hot weather in Suining, Sichuan province, 27 July 2008. (Photo by Reuters/Stringer)

2000 attended a welcome party at TigerTiger Manchester which was the first event in set of big club night for new students to Manchester and Salford universities in Manchester, UK on September 19, 2016. This year, university bosses have stepped up security in Manchester. (Photo by Jordan Sinclair/UK News Pictures)