Montgomery County Missouri has 9 places on the National Register of Historic Places including 1 place of National significance and 2 places of Statewide significance. Significant places include Graham Cave, Pinnacle Lake Rock Shelter and Shrine of Our Lady of Sorrows, Baker, Sylvester Marion and Frances Anne Stephens, House and Farmers Mercantile Co. Building.
Prehistoric cultural affiliation(s) include Woodland, Archaic, Plains and Native American dating back to 8999 BC.
Some of the country's most noteable architects helped create the Montgomery County places including Sparks. Prominent architectural styles found in Montgomery Country are Greek Revival, Early Commercial and Gothic Revival.