The Making of an American Icon
Learn how Chicago’s tallest tower became known the world over.↓
- Construction Begins
- Construction Completed
- Antenna Added
- Atrium Added
- Skydeck Renovations
- Renamed to Willis
- Blackstone Purchase
- Renovation Plan Begins
- Renovations Complete
Formerly known as the Sears Tower, Willis Tower has been an iconic part of the Chicago skyline since 1973. At 110 stories high, Willis Tower is also one of the largest skyscrapers in the world.
In 2017, Willis Tower underwent a massive transformation to be reimagined for the future of work. Today, Willis Tower is a welcoming anchor in the heart of downtown Chicago, offering a wide array of amenities for everyone in the community to enjoy.
The 12th tallest building in the world
Construction begins on Sears Tower
With the efforts of over 2000 workers, construction is completed on what is then the tallest building in the world.
The tower’s iconic broadcast antennae are added.
The Wacker Drive Atrium is added to the base of the tower, featuring a distinctive arched glass construction.
The Skydeck undergoes its first renovations
‘Sears Tower’ is renamed ‘Willis Tower’
Blackstone purchases Willis Tower
The five-year-long renovation plan begins
Renovations complete, featuring Catalog, the Art of the Neighborhood, rooftop greenspace and more.
A beacon for the world to see
When you’re watching your favorite shows or listening to the radio on your drive home from work, you might just be picking up a signal from Willis Tower — our broadcast facility is one of the world’s most prominent, serving the needs of large television and radio stations in Chicago.
The tower's antennas also feature rotating colors that light up the sky each night, celebrating everything from holidays to awareness, sports teams and celebrations. If you are interested in partnering with Willis Tower on an antenna lighting please contact [email protected]
more about the antennae color schedule ↗
Visit the Tower
Visit and Contact
233 South Wacker Drive
Chicago, IL 60606
Contact our management team
1 (312) 875-0066
get directions to the tower from anywhere
Hours and Attractions
9:00am to 10:00pm
365 days per year
Willis Tower’s stunning top-floor with views of Chicago and beyond
Our five-story retail and dining experience with rooftop terrace
5:00am - 11:00pm M-F
Main entrance for tenants and visitors
7:00am - 11:00pm Daily
Main entrance for Skydeck Catalog
Open 24 hours daily
The EQ Promise
With 50 years of experience and an industry-leading breadth of spaces, design resources, and partners across the country, we give clients limitless options and the expertise to bring their vision to life.More on EQ Office →