World's Tallest Stuff: Burj Khalifa, Dubai
The honor of tallest building in the world goes to the Burj Khalifa, which soars above downtown Dubai at 2,716.5 feet. Its 160 stories are filled with offices, 900 private residences, the Armani Hotel, a four-story fitness complex and an observation deck on the 124th floor. Since it opened, the Burj Khalifa has dwarfed all former "world's tallest buildings," including this one in Toronto.
