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Shanghai Tower

A general view from the top of the under construction Shanghai Tower shows the 492m Shanghai World Financial Center (R) and the 421m Jin Mao Tower (L) in Shanghai on August 2, 2013. The Shanghai Tower at 632m will be the tallest building in Asia and the second tallest building in the world. AFP PHOTO / Peter PARKS

World's second tallest tower in China

The second tallest tower in the world, just 196 metres shorter than Dubai's Burj Khalifa (828m) is under construction in Shanghai, China. We take a tour of the astonishing structure.