The construction of The
Sears Tower started in 1970.
It was designed by Skidmore, Owings, and Merrill and was
completed and opened in 1973. Its location is on Wacker
Drive in Chicago. It is 1454 feet tall and weighs
445,000,000 pounds. The Sears Tower is 110 stories high
and the antennas are over 200 feet tall. It took three
years to build and over 12,000 people work