The tallest building in the world is the Burj Khalifa, located in Dubai, United Arab Emirates. Completed in 2010, it stands at an impressive height of 828 meters (2,722 feet) and has become a symbol of Dubai's rapid development and architectural grandeur. The Burj Khalifa features a mix of residential, commercial, and hospitality spaces, along with observation decks offering breathtaking views of the city. The building's innovative design and engineering techniques reflect modern architectural achievements, making it an iconic landmark that attracts millions of visitors each year.