Willis Tower

Shining bright in the night sky, the Willis Tower antennas are a guiding light, welcoming visitors.

At the very top of the building are antennas with airline warning strobe lights that flash 40 times a minute. Visible to pilots over great distances, the lamps are changed about every 18 months by a climber who scales the antenna towers. New digital antennas were recently installed for Chicago’s major television stations so they can broadcast high-definition TV.


Antenna Facts:

West antenna tower height = 294'-5" (from 109 roof level to top of strobe light)
East Antenna tower height = 290'-7" (from 109 roof level to top of strobe light)
Tower Bases = 12' diameter solid wall steel cylinders

Antenna Colors

Antenna Colors

March:
St. Patrick’s Day

September:
Chicago Gateway Green

November:
Willis Tower Tree Lighting

December:
Holidays

Antenna Colors

May:
Mother’s Day

October:
Lynn Sage
(Breast Cancer Awareness Month)


Antenna Colors

April:
Autism Awareness

May: 

Memorial Day
Police Officer Memorial

July:
Fourth of July

August:
First Bears Home Game

September:
The Chicago Police Memorial Foundation

Antenna Colors

March:
MS Awareness

August:
First Bears Home Game

October:

Halloween


Antenna Colors

February:
Go Red! American Heart Association
Valentine's Day

April:
Blackhawks and Bulls Play-Offs

May:
Memorial Day

July:
Fourth of July

September:
Lymphoma Research Foundation

November:
Willis Tower Tree Lighting

December:
Holidays

Antenna Colors

November:
Pancreatic Cancer Awareness


Antenna Colors

May:
National Women's Lung Health Week

September:
National Ovarian Cancer Coalition