More than 1.7 million people make their way to Willis Tower's Skydeck Chicago each year ... which features an express line to the elevators. For the best views, it's advised that you visit ...

The for-profit education company focused on health care professionals is bucking the trend of downtown office tenants shrinking their footprints. Owners of Willis Tower, Prudential Plaza and Aon ...

An curved arrow pointing right. The Ledge is a glass box on the 103rd floor of the Willis Tower, the eighth-tallest building in the world and the tallest building in the Western hemisphere.