Burj Khalifa is the tallest building and tallest free-standing structure in the world, measuring more than 2,716 feet high. This impressive architectural feat has more than 160 stories to its name, affording unforgettable views of Dubai . Visitors will want to reserve tickets ahead of time for privileged access to the world's highest observation deck, At The Top, Burj Khalifa SKY. Then, head to the world's highest lounge, The Lounge, Burj Khalifa, for afternoon tea or Champagne at sunset.