A parkour（跑酷；一种极限运动）fan practices back flips at the Bund in Shanghai, Aug 24, 2010. Parkour, sometimes called free running, is an urban sport focusing on surpassing all obstacles in one's path as smoothly and fast as possible using just the body. It originated in France in the 1980s and is now gaining popularity among young Chinese enthusiasts. [Photo/CFP]

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