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
March:
St. Patrick’s Day
November:
Willis Tower Tree Lighting
December:
Holidays
May:
Mother’s Day
October:
Lynn Sage
(Breast Cancer Awareness Month)
April:
Autism Awareness
May:
Memorial Day
Police Officer Memorial
July:
Fourth of July
August:
First Bears Home Game
March:
MS Awareness
August:
First Bears Home Game
October:
Halloween
February:
Go Red! American Heart Association
Valentine's Day
April:
Blackhawks and Bulls Play-Offs
May:
Memorial Day
July:
Fourth of July
November:
Willis Tower Tree Lighting
December:
Holidays
November:
Pancreatic Cancer Awareness
May:
National Women's Lung Health Week
