10The Willis Tower
Commonly called as “Sears Tower”, this 1,451-foot skyscraper is located in Chicago, Illinois. This 108-storey building once held the title as the “tallest building in the world” and was built in 1974. It was formerly owned by Sears Roebuck and Company. Aside from the signature black aluminum and bronze-tinted glare reducing glass, this structure gives a view of Chicago from the sky deck located at the 103rd floor. Click the next ARROW to see the next image!