Burj Khalifa, known as Burj Dubai prior to its inauguration,
is a skyscraper in Dubai, United Arab Emirates, and is the tallest man-made
structure in the world, at 829.8 m (2,722 ft).
Construction began on 21 September 2004, with the exterior
of the structure completed on 1 October 2009. The building officially opened on
4 January 2010,and is part of the new 2 km2 (490-acre) development called
Downtown Dubai at the 'First Interchange' along Sheikh Zayed Road, near Dubai's
main business district. The tower's architecture and engineering were performed
by Skidmore, Owings and Merrill of Chicago, with Adrian Smith as chief
architect, and Bill Baker as chief structural engineer.The primary contractor
was Samsung C&T of South Korea.
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