Vernon County Missouri has 7 places on the National Register of Historic Places including 3 places of National significance and 1 place of Statewide significance. Significant places include Brown Archeological Site, Carrington Osage Village Site, Halleys Bluff Site and Coal Pit Archeological Site and Infirmary Building, Missouri State Hospital Number 3.
Some of the country's most noteable architects helped create the Vernon County places including Carroll and Dean, George Fluke, Robert G. Kirsch, C.M. Libby and Beagles & Dye. Prominent architectural styles found in Vernon Country are Modern Movement and Romanesque.