





Willis Tower
Attraction
4.5 (21147 reviews)
Iconic, 110-story skyscraper featuring expansive views of Chicago from its 103rd-story Skydeck.
233 S Wacker Dr, Chicago, IL 60606
+1 312-875-0066
Did You Know?
Sky-High Observation Deck
The Willis Tower's Skydeck, located on the 103rd floor, offers breathtaking views from 1,353 feet above ground, making it the highest observation deck in the United States.
Glass Ledges
The Skydeck features retractable glass balconies called 'The Ledge,' which extend 4 feet from the building's facade, allowing visitors to experience a thrilling sensation of floating above the city. Each ledge can hold up to 4.5 metric tons.
Construction Time
The Willis Tower, originally known as Sears Tower, took three years to construct, starting in 1970 and finishing in 1973.
Concrete Quantity
The builders used an astonishing amount of concrete during construction – enough to build an eight-lane highway stretching five miles long!