As of 2021, the world's tallest building is the Burj Khalifa, located in Dubai, United Arab Emirates. Standing at 828 meters (2,717 feet), it has held the title since its completion in 2010. The Burj Khalifa features 163 floors, with an observation deck that offers stunning views of the city and beyond. Designed by the architectural firm Skidmore, Owings & Merrill, the building's sleek design and advanced engineering have made it a symbol of modern architecture and a significant landmark in Dubai's skyline.