10/16/2025
The Wrigley building under construction in 1921. The building is clad in more than 250,000 glazed terra-cotta tiles produced by the Northwestern Terra Cotta Company. You may not have noticed, but there are six shades of white on the building. Brighter shades are near the top to contrast with the blue sky. Also the building has been lit up at night since it's completion. There are lights on Wacker, lower Wacker, lights across the street and even a few lights on neighboring buildings all illuminating the building at night. They recently upgraded the fixtures and they increased the number from 100 lights to 300. They still saved almost 70% on the lighting bill by switching to led.
