In recent years China has witnessed lots of phenomenal constructions. The world's longest high-speed rail line (2.298-kilometer-long), which spans over half of China, began operating at the end of last year. In April, 2012 the world's highest and longest tunnel-to-tunnel bridge was commissioned in China, which linked together two tunnels 1176 meters apart, and 355 meters above Hunan's Dehang Canyon. Again in 2012 Chinese mass media reports, that Changsha, China's Hunan province will be home to world's tallest building, which will be built in just 7 months. 220-store building will be 838 meters high. Today China put into operation world's largest building - New Century Global Center .

The superlatives in China continue -- the latest symbol of China's "bigger is much, much better" ethos is open for business.

Located in Chengdu (population 14 million), capital of Sichuan province in southwestern China, the New Century Global Center is the "largest freestanding building in the world," Chinese officials say. Though the words "world's largest" usually bring to mind an image of a towering skyscraper, this project actually isn't all that tall. But it's certainly big.

At 500 meters long, 400 meters wide and 100 meters high, the 1.7-million-square-meter mega-structure is capable of housing 20 Sydney Opera Houses and almost three times the size of the Pentagon in Washington, D.C. The Global Center, which opened June 28, is home to business offices, hotels, movie theaters, shopping malls, a faux Mediterranean village and family-themed attractions such as a water park called Paradise Island.