The Sears Tower is 1,454 feet high - 1,707
feet including twin antenna towers.
The Skydeck is 1,353 feet above the ground.
The lowest level of Sears Tower is 43 feet below the Franklin
St. elevation.
The combined weight of the building is 222,500 tons - that's
445,000,000 lbs.
The cost of building the Sears Tower was in excess of $150
million.
The Sears Tower, opened in 1973, took 3 years to build.
The building has 4.5 million gross square feet of floor space.
On a clear day, you can see four states - Illinois, Indiana,
Wisconsin and Michigan. Visibility from
the Skydeck is approximately
40-50 miles. The average sway of the building is appox. 6 inches
from true center.
The Sears Tower has approximately 16,100 bronze-tinted windows.
6 roof-mounted robotic window washing machines clean all 16,100
windows.
Sears Tower elevators operate as fast as 1,600 feet per minute
- among the fastest in the world.
The Sears Tower contains 2,000 miles of electrical cable.
Approx. 43,000 miles of telephone cable runs through the building.
The Sears Tower was designed for more than 12,000 occupants.
Approximately 25,000 people enter the building each day.
Approximately 1.5 million tourists visit the Skydeck each
year.
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