Taipei Tower 101 is 1,670 ft tall and completed in 2003 took just 4 years to build. It is called the 101 because it has 101 floors (stories) above ground, and 5 below. From ground to tip of spire the Sears Tower is still taller than the Taipei 101, however from ground to top of roof the Taipei does win. The Taipei 101 is the first and currently only habitable building in the world to break the half-kilometer mark in height.
