CNA Center is a 600-ft (183 m), 44-story high-rise building located at 333 South Wabash Avenue in the Loop Community Area of Chicago.
CNA Center is a simple, rectangular International Style building, but it is unique in that the entire building was painted bright red by Eagle Painting & Maintenance Company, Inc., turning an otherwise ordinary-looking structure into one of the most eye-catching buildings in the city. It was designed by the firm of Graham, Anderson, Probst & White and was completed in 1972. The red design was used to depict the sun setting over the ocean as illustrated by the red imagery to the west of Lake Michigan. Sources