Willis Tower The Skydeck
The Sears Tower observation deck, called the Skydeck, opened on June 22, 1974. It is located on the 103rd floor of the tower. Tourists can experience how the building sways on a windy day. They can see far over the plains of Illinois and across Lake Michigan to Indiana, Michigan and Wisconsin on a clear day. Elevators take tourists to the top in about 60 seconds. This allows tourists to feel the pressure change as they rise up.