- Building Big: Sears Tower
 - Background and stats on the Chicago skyscraper completed in 1973. - Great Buildings Online: Sears Tower
- Overview of the skyscraper designed by Bruce Graham/Skidmore, Owings & Merrill.
- Sears Tower: 110 Storeys of the Big Store
- With building facts, directions, and other information.
- Wikipedia: Willis Tower
- Entry on the Willis Tower in Chicago, Illinois. Formerly known as the Sears Tower, it is currently the fourth-tallest building in the U.S. Find out more about its history, Skydeck, and future plans.
- Willis Tower
- Official site of Willis Tower, formerly Sears Tower, in Chicago. Find leasing info, Skydeck details, and current news.
- Willis Tower Skydeck
- Information for visitors on sites and the view.
|
