Burj Dubai

Burj Dubai (Arabic for 'Dubai Towers') is a skyscraper is still under construction in Dubai, United Arab Emirates. Height of the skyscraper is still a secret until the completion of the building, although recently, had announced on January 19, 2009 by contractors who worked on this project, if you top out at an altitude 818 meters (2683 feet).

Although not yet fully completed, Burj Dubai has become the world's tallest building ever built by humans. Starting at the height of Taipei 101 passed as the world's tallest building on July 21, 2007. On September 12, 2007, Burj Dubai's height made it past the CN Tower as a structure-free (without support) the highest in the world and on 7 April 2008 the world's tallest structure of the KVLY-TV Tower is located in Blanchard, North Dakota, United States successfully passed . Altitude must be kept secret until the building was finished, but is believed to approximately 818 meters (2683 feet). Tallest structure ever built by humans, Warsaw Radio Tower 645.4 m (2120 ft) was made in 1974 (but collapsed during renovation in 1991) managed to pass on 1 September 2008.
from http://id.wikipedia.org