The Prowers County Building, at 301 S. Main St. in Lamar, Colorado, was built in 1928. It was a work of Robert K. Fuller and of A.E.Danielson & Sons in Classical Revival style. It served as a courthouse and has also been known as Prowers County Courthouse. It was listed on the National Register of Historic Places in 1981.Its NRHP nomination asserted that: "In its innovative blending of academic and moderne forms, the Prowers County Building is clearly one of the most unique and distinguished county courthouses in the state."