The Sears Tower contains enough concrete to build an eight-lane, five-mile-long highway
- steel to build 50,000 automobiles
- telephone wiring to wrap around the world 1.75 times. that's 43,000 miles of wire!
- On a clear day, you can see four states -- Illinois, Indiana, Wisconsin, and Michigan -- from the Sears Tower Visitor Skydeck.
- At the very top of the building, the maximum wind drift is just 6 inches.
- Six roof-mounted robotic window-washing machines clean all 16,100 windows on the Sears Tower.
- The Sears Tower has approximately 16,100 bronze-tinted windows.
- Sears Tower elevators operate as fast as 1,600 feet (488 meters) per minute - among the fastest in the world.
- Approximately 25,000 people enter the building each day.
- Approximately 1.5 million tourists visit the Skydeck each year.
- Completion Date: 1973
- Cost: $150 million
- Height: 1,454 feetStories: 110
- Materials: SteelFacing Materials: Black aluminum
- Engineer(s): Skidmore, Owings & Merrill
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