The Willis Tower, also know as Sears Tower, is the highest building in Chicago. It was built in 1973 by Bruce Graham. It was the highest building for 25 years. It is now the 2nd highest building in the U.S. and is 1451 feet tall. With 416,000 square meters of space, the building is comparatively large for its height. Its innovative design and graceful styling set the standard for supertall skyscrapers around the globe.
The Skydeck on 103rd floor is one of the favorites attraction of tourists. One of the nicest view of Chicago where you can see throught lake michigan, Indiana, Michigan and Wisconsin. Frome there, when it is windy, you can feel the building moving a litlle bit.
The Willis Tower is one of the most visited place in Chicago. More than 100 companies live their and have their headquarters.