A lot of commotion accompanied the opening of the skyscraper Burj Khalifa in Dubai and there is hardly anyone who does not know that the world has a new tallest building. It was constructed by the Chicago-based firm Skidmore, Owings & Merril and the construction process lasted five years- – from September 2004 until October 2009. Adrian Smith is the architect, Bil Bakei is the chief construction engineer. The building is 828 m high and has offices and living areas, as well as the first in the word Armani hotel. Burj Khalifa has broken several records – it has the fastest elevators, a swimming pool, a mosque and observatory situated on the highest level (76″‘, 154’ and 124 floor respectively). A person average height can see the tower from the impressive 94 km.