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PARIS, FRANCE - OCTOBER 17: A homeless man in Stalingrad neighborhood, in Paris, on October 17, 2013. According to a disputed report from Le Figaro newspaper, London became the most visited city in the world in 2013, with 16 million visitors, just above Paris with 15.9 million visitors. It is possible that tourists don't enjoy the state of dirtiness in which Paris, the 'city of lights', has fallen. (Photo by Lucas Schifres/Getty Images)