Height: 2,717 feet (828 meters)
Location: Dubai, United Arab Emirates
Architect: Skidmore, Owings and Merrill (SOM)
Meet the world's tallest building, according to the Council on Tall Buildings. Burj Khalifa has a metal facade that's reflective of the sky during the day and illuminated by various other lighting at night. The 208-floor building includes the world's first Armani Hotel by designer Giorgio Armani, luxury residences and offices, and the world's highest observation deck, "At the Top."