World's largest building opens in China

The "New Century Global Center" building opened to the public in Chengdu, southwest China's Sichuan province, June 28, 2013.

The center, claimed by Chinese officials to be "the world's largest standalone structure", has 1.7 million square metres of floor space, large enough to hold 20 Sydney Opera Houses.

The "New Century Global Center" building opened to the public in Chengdu, southwest China's Sichuan province, June 28, 2013.

The enormous facility is home to business offices, hotels, theaters, shopping malls, a faux Mediterranean village and attractions including a water park called "Paradise Island."

Workers make last minute preparations at a water park in the "New Century Global Center," June 28, 2013.

A water park is seen in the "New Century Global Center" building which opened to the public in Chengdu, southwest China's Sichuan province, June 28, 2013.

Workers clean the glass roof of the "New Century Global Center" building.

The "New Century Global Center" building open in Chengdu, southwest China's Sichuan province, is claimed to be the world's largest standalone structure.

The "New Century Global Center" building open in Chengdu, southwest China's Sichuan province, is claimed to be the world's largest standalone structure.