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

April:
Earth Day

June:
Support for Orlando
Chicago Pride Parade

November:
Veterans Day

December:
Holidays

Antenna Colors

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

March:
Chicago Red Cross

April:
NFL Draft

May:
Memorial Day

June:
Support for Orlando
Chicago Pride Parade

July:
Fourth of July

December:
Holidays


Antenna Colors

January:
Blue Light for Peace
Martin Luther King Jr. Day

April:
Autism Awareness

Earth Day
NFL Draft

May: 
Memorial Day
Police Officer Memorial

June:
Support for Orlando
Chicago Pride Parade
Father's Day

July:
Fourth of July

August:
First Bears Preseason Home Game

September:
First Regular Season Bears Game
The Chicago Police Memorial Foundation

November:
Illini Day in Chicago


 

 

Antenna Colors

March:
National Multiple Sclerosis Awareness Month

August:
First Bears Preseason Home Game

September:
First Regular Season Bears Game

October:

Halloween

November:
Illini Day in Chicago


Antenna Colors

June:
Support for Orlando
Chicago Pride Parade