Burj Khalifa - Tallest building in the world

The Burj Dubai is a skyscraper currently under construction, since April 15, 2005, in Dubai, United Arab Emirates. The lead architect is Adrian Smith of the Chicago office of Skidmore, Owings and Merrill. Its final height is officially being kept a secret due to competition; however, figures released by a contractor on the project have suggested a height of around 808 metres (2651 feet). Based on this height, the total number of habitable floors is expected to be around 162. However, on the project's official website, an interior graphic of an elevator panel shows floor numbers up to 195. A more recent article by building subcontractor Persian Gulf Extrusions and dated September 20, 2006, states a final height "over 940 metres" or at least 3084 feet, but this has not yet been confirmed by Emaar. This new figure is 24 metres higher than the final height rumoured on another posting on the burjdubaiskyscraper web site. It is also reported at a website that the estimated floor count is 216 and a height of 1011 metres.

As of January 14, 2007, the Burj Dubai was at 105 stories (about 389 m) tall, and is now the tallest building in the Middle East, and the eighth tallest building in the world.

However, evidently, little in the way of curtain wall glass has been installed yet on the structure. [wikipedia]