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Photos: The biggest building in the world

This picture taken on May 26, 2013 shows the "New Century Global Centre" building reflected in an artificial lake in Chengdu, in southwest China's Sichuan province. The center, claimed by Chinese officials as "the world's largest standalone structure", is going to be opened to the public on June 28. The 100m high "New Century Global Centre" is a symbol of the spread of China's boom: 500m long and 400m wide, with 1.7 million square metres of floor space - big enough to hold 20 Sydney Opera Houses, according to local authorities. CHINA OUT AFP PHOTO

World's biggest building opens in China

The New Century Global Centre, which is fairly Chinese, as building names go, is now, officials claim, the world's largest standalone structure. Another claim to fame? An "indoor seaside" pleasantly free of smog.