Burj Dubai (also known as Burj Khalifa) is a skyscraper located in the city of Dubai, United Arab Emirates, the tower is 818 meters high and can accommodate 12,000 people. It took five years to build, and is a masterpiece of architecture and engineering built of reinforced concrete and glass. The 160-story tower features luxury apartments, a clothing boutique, a swimming pool, a spa club, and premium personal business suites. In addition to its challenging height, the Tower features the world's tallest and fastest "smart" elevator, which takes you to the world's tallest outdoor observation deck on the 124th floor in just one minute.