World Tallest Building Burj Khalifa in Dubai UAE

The Burj Khalifa located at Downtown Dubai was revealed to be 829.84m (2,716ft) high, far taller than the previous record holder, Taipei 101 (509.2m).It was named as the "Burj Dubai" during construction, the tower has been renamed after the Sheikh Khalifa bin Zayed Al Nahayan of Dubai's oil-rich neighbour, Abu Dhabi.
Burj Khalifa is a skyscraper in Dubai, United Arab Emirates, and the tallest man-made structure ever built in history. 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.
It has 160 stories.The tower also lays claim to the highest occupied floor, the tallest service lift, and the world's highest observation deck - on the 124th floor.The world's highest mosque and swimming pool will meanwhile be located on the 158th and 76th floors.
Burj Khalifa will be home to 1,044 luxury apartments, 49 floors of offices and eventually a 160-room Armani-branded hotel. Around 12,000 people are expected to live and work in the tower, which is part of a 500-acre development.