A pictorial essay of the tallest buildings in the world.
Update: January 4th, 2010 - Burj Dubai, the world's tallest building officially opened today in Dubai, United Arab Emirates.
Burj Dubai is over 800 metres (2,625 ft) tall and has more than 160 stores, the most of any building in the world.
Besides an observation deck on its 124th floor affording 360-degree views of the entire city, Burj Dubai is home to the world's first Armani Hotel, luxury offices and residences, and a variety of other sophisticated leisure and entertainment facilities.
Burj Dubai will ultimately be the place of residence, work and leisure for a community of up to 12,000 people.