Built in 1941, the District 6 Illinois State Police office is an example of Art Moderne architecture. The streamline effect is accomplished through the extensive use of curved corners, smooth surfaces and structural glass bricks. The building's interior contains a large squad room, used for meetings, office space, a public lobby and a garage bay for cars and motorcycles. The one-story building has two main wings. The north wing was originally the administrative area and the south wing a garage. From the air the building's layout appears "pistol-shaped." The same design was used by the Illinois State Police in the construction of the headquarters building at Rock Island. It was listed on the U.S. National Register of Historic Places in 2007.