Sears Tower Discover the all new Sears Tower skydeck and explore the beautiful city of Chicago from top to bottom.  This magnificent building not only allows you to see Chicago, but 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 approximately six inches from true center.  The Sears Tower also features virtual tours and a restaurant. Come visit the tallest building in the world, and have an experience that you won’t forget. The Sears Tower Skydeck The Sears Tower 233 S. Wacker Drive., Suite 3530 Chicago, IL  60606 (312) 875-9696