Uploaded September 2014 | Updated September 2026, 2 weeks ago
How do they change the lights on top of the Willis Tower?
Twenty-four different points atop the Willis Tower illuminate the building at night. Building electricians Michael E. Hlavacek and Jim O’Keefe talk about what it means to them to have an office with the “greatest” view in the world and maintain an important attribute of Chicago’s skyline. Visit architecture.org/buildings to learn more about Chicago’s most iconic buildings and discover how Chicago’s rich architectural legacy was built.
How do they change the lights on top of the Willis Tower?
Twenty-four different points atop the Willis Tower illuminate the building at night. Building electricians Michael E. Hlavacek and Jim O’Keefe talk about what it means to them to have an office with the “greatest” view in the world and maintain an important attribute of Chicago’s skyline. Visit architecture.org/buildings to learn more about Chicago’s most iconic buildings and discover how Chicago’s rich architectural legacy was built.
