Burj Khalifa

With a total height of 829.8 m and a roof height (excluding antenna) of 828 m, the Burj Khalifa has been the tallest structure and building in the world since its topping out in 2009. The design is derived from Islamic architecture. An outdoor observation deck, named At the Top, opened on 5 January 2010 on the 124th floor. The 124th floor observation deck also features the electronic telescope, an augmented reality device which allows visitors to view the surrounding landscape in real-time, and to view previously saved images such as those taken at different times of day or under different weather conditions. The 124th floor observation deck also features the electronic telescope, an augmented reality device developed by Gsmprjct° of Montréal, which allows visitors to view the surrounding landscape in real-time, and to view previously saved images such as those taken at different times of day or under different weather conditions.