by Sebastien Blanc CHENGDU CHN AFP
A thousand kilometres from the nearest coast a towering glass wave rolls over the plains of Sichuan, the roof of what Chinese officials say will be the world's largest standalone structure.
The 100-metre-high "New Century Global Centre" is a symbol of the spread of China's boom, 500 metres long and 400 metres wide, with 1.7 million square metres of floor space, big enough to hold 20 Sydney Opera Houses according to local authorities.
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