The Burj Khalifa is a skyscraper in Dubai. Until its inauguration, the Burj Dubai building was named after the name of the President of the United Arab Emirates.
The Tower Burj Khalifa has become by its size the center of a new urban development area called Downtown Dubai. It has brought together a broad mix of functions such as commerce, housing, offices, hotels, shopping, entertainment and leisure and has invested $ 20 billion in recent years.
In the bottom 38 of the generally usable 163 floors, the world's first Armani Hotel moved. On the upper floors there are 43 offices and some suites. The 123rd floor is designed as a lobby, the 124th as an observation deck with an outdoor terrace "AT THE TOP". The flow of visitors is conveyed via 2 elevators in 55 seconds on the 124th floor. Since fall 2014, visitors have access to two further viewing platforms "At The Top / Sky". In 60 seconds, an elevator first transports visitors to the 125th floor, a viewing platform without an outside terrace. Another lift then takes visitors from the 125th floor up to the 148th floor to an observation deck with an outdoor terrace at 555.70 meters.  It is a bit more exclusive, drinks and appetizers are served. The visitor flow is much lower on the 148th floor than on the 124th floor. Both outdoor terraces (124th and 148th floor) are oriented so that you have a good view of the water features "Dubai Fountain", which start daily from 18:00 clock. The highest inhabited floor is the 163rd and is located at 584.5 meters. Elevators lead to the 189th floor at 638 meters.
In January 2011, the restaurant At.Mosphere was opened on the 122nd floor, which, according to the number of floors below, is the highest restaurant in the world.  In February 2011, two gold vending machines were inaugurated in the Burj Khalifa, where you can, as at an ATM, pick up gold bars of up to one ounce.
Due to declining demand in Dubai, apartment prices in Burj Khalifa fell 40 percent ten months after opening. In October 2010, 825 out of 900 apartments were empty