The Burj Khalifa, formerly known as the Burj Dubai before its official opening, is a towering skyscraper in Dubai, United Arab Emirates. Soaring to a total height of 829.8 meters (2,722 feet), including its 242.6-meter spire, it stands as the tallest man-made structure in the world. With a roof height of 828 meters (2,717 feet), the Burj Khalifa has held the title of the world’s tallest building since its completion in 2009, surpassing Taipei 101, which had held the record since 2004.