Take a look inside the world's biggest building: Chinese dome houses a shopping centre, Mediterranean village, water park, ice-skating rink, and multiple hotels New Century Global Center is world's largest freestanding building capable of fitting 20 Sydney Opera Houses inside The massive glass dome fits in a shopping centres, hotels, a water park and a village on 19m sq.ft The 100metre high glass ceiling comes with its own artificial sun which will keeps visitors warm 24 hours a day Shopping, swimming, skating, sunbathing and sleeping are all activities on offer to visitors at the world's largest building. Measuring a staggering 19million sq.ft. it contains shopping centres, a Mediterranean village, a water park, an ice-skating rink, and multiple hotels. Gigantic: The world's largest building has opened in China capable of fitting 20 Sydney Opera Houses - or three Pentagons - inside Take a splash: A view of the Paradise Island Water Park, which features an artificial beach Expanse: The New Century Global Center in Chengdu, Sichuan province, is a staggering 19million sq.ft However, visitors to the glass-panelled building need not worry about the weather as the giant complex has its own artificial sun. Bigger is better: The interior of the main hall the New Century Global Center. The cavernous structure is located in a suburb of Chengdu in southwest China's Sichuan province Vast: The building is 500 metres long, 400 metres wide and 100 metres high, reports said Draw: The centre which only opened recently is hoping to attract a mass of visitors in the growing region Extensive project: According to Chinese officials, the New Century Global Center is the largest freestanding building in the world, and took three years to complete Marvel: ¿This is an ocean city built by man,¿ said Chinese guide Liu Xun. He added that the artificial sun built inside the building will provide light and heat 24 hours a day Shopper's paradise: The new building has 400,000 sq. metres of boutiques and stores for shoppers to explore Day out: The new complex promises to have something to amuse everyone in the family Impressive: The New Century Global Center stands at 500m long, 400m wide and 100m high Competition: The tallest building in the world is in Dubai, but Chinese officials are calling this 'the largest building in the world' Grand: An exterior view of the New Century Global Center which has a man-made lake in the front