Tallest builing of the world

The Burj Khalifa is the loftiest building in the world, standing at 828 meters (2,717 feet) tall. It is located in Dubai, United Arab Emirates, and was finished in 2010. The building has 163 stories, of which 154 are residential, 39 are hotel, and 7 are for retail and commercial space. The Burj Khalifa also has the world's highest outdoor observation deck, located on the 124th floor. The Burj Khalifa was designed by Adrian Smith and Skidmore, Owings & Merrill. The building's design is inspired by the desert flower Hymenocallis, and its tapering shape helps to decrease wind resistance. The Burj Khalifa is made of reinforced concrete and steel, and its construction employed over 12,000 workers. The Burj Khalifa is a major tourist attraction in Dubai, and it is also a popular destination for business travelers. The building is home to a number of high-end restaurants and hotels, and it also has a number of observation decks that offer breathtaking views of the city.