| Sears 
        Tower 
         
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              Facts:
              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.  For more information 
              please visit Sears 
              Tower Online. |  
Course Project at my Institute
  
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