The tallest building in the world is the Burj Khalifa, located in Dubai, United Arab Emirates. Completed in 2010, it stands at a height of 828 meters (2,717 feet) and has 163 floors. The building is known for its unique design and impressive engineering, making it a prominent landmark in the city. The Burj Khalifa was designed by the architectural firm Skidmore, Owings & Merrill, with Adrian Smith as the lead architect. It features a mix of residential, commercial, and hospitality spaces, including the luxurious Armani Hotel. The building attracts millions of visitors each year, offering stunning views from its observation decks.