The Tribune Tower is a neo-Gothic building located at 435 North Michigan Avenue in Chicago, Illinois. It is the home of the Chicago Tribune and Tribune Company. WGN Radio also broadcasts from the building, with ground-level studios overlooking nearby Pioneer Court and Michigan Avenue. CNN's Chicago bureau is located in the building. The tower is listed as a Chicago Landmark and is a contributing property to the Michigan–Wacker Historic District.
Construction of the building was started in 1922 and completed in 1925.