The Burj Khalifa is a skyscraper in Dubai, United Arab Emirates. It is the world's tallest structure. With a total height of 829.8 m and a roof height of 828 m, the Burj Khalifa has been the tallest structure and building in the world since its topping out in 2009, surpassing Taipei 101, the holder of that status since 2004.
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Destinations: Rome, Las Vegas, Paris, London, New York, Dubai, Barcelona, Athens
The most venerable and polished of the tour-and-activity sites. – BBC