The Sears Tower, now known as the Willis Tower, has a total of 16 antennas. These antennas are used for various telecommunications purposes, including broadcasting television and radio signals. The tower's height, combined with its antennas, makes it a prominent fixture in the Chicago skyline.
they put the antennas in 1974.
If you don't count the antennas it is the Willis Tower (Sears Tower) but if you do its The Taipei.
The tallest building in the US is the Willis Tower, Chicago IL
The antennas on the top of the Sears Tower were built to transmit television and radio signals. Being located at a height of over 1,450 feet, the antennas on the tower provide better signal reception and transmission capabilities due to less interference and higher line of sight.
108 Stories, and the Sears Tower is now known as The Willis Tower.
There are 2,109 steps to the Skydeck in the Sears Tower (now known as the Willis Tower).
108-stories, 1,451 feet (442 m) or 1,730 feet (527 m) if you include the antennas
sears tower has 110 floors...each floor is 13ft tall
The Sears Tower has over 16,000 windows. It was renamed Willis Tower on July 16, 2009.
The sears tower is 110 stories tall 1550 feet tall and 442 meters. It's name was changed to Willis tower in March 2009
104, with 16 double-decker elevators Sears Tower was renamed Willis Tower on July 16, 2009.
The former Sears Tower is now officially named the Willis Tower, much to the chagrin of many Chicagoans.