It is a mixed-use skyscraper, consisting of offices, hotels, conference rooms, observation decks, and ground-floor shopping malls. Containing 174 rooms and suites. Occupying the 79th to the 93rd floors, it is the second-highest hotel in the world. On 14 September 2007, the skyscraper was topped out at 492.0 meters (1,614.2 ft), making it, at the time, the second-tallest building in the world and the tallest structure in Mainland China. [Wiki]