Douglas County Missouri (Historic Districts) has 2 places on the National Register of Historic Places including 1 place of Statewide significance. Significant places include Southwest Missouri Prehistoric Rock Shelter and Cave Sites Discontiguous Archeological District, Ava Ranger Station Historic District.
Prehistoric cultural affiliation(s) include Archaic, Paleoindian and Ceramic dating back to 12999 BC.
Some of the country's most noteable architects helped create the Douglas County places including Civilian Conservation Corps. Prominent architectural styles found in Douglas Country are Colonial Revival.