Audrain County Missouri has 4 places on the National Register of Historic Places including 1 place of National significance. Significant places include Simmons, Arthur, Stables Historic District, Audrain County Courthouse, Lincoln School, Ross House.
Some of the country's most noteable architects helped create the Audrain County places including Walsh Company, Epple Construction and Bonsack and Pearce. Prominent architectural styles found in Audrain Country are Classical Revival.