Miller County Missouri has 7 places on the National Register of Historic Places including 2 places of Statewide significance. Significant places include Bagnell Dam and Osage Power Plant and Lake of the Ozarks State Park Highway 134 Historic District, Bagnell Dam and Osage Power Plant, Boeckman Bridge and Iberia Academy and Junior College.
Some of the country's most noteable architects helped create the Miller County places including Stone & Webster, CCC, LaBaume & Klien, Henry J. Sanning and Joeph A. Dice. Prominent architectural styles found in Miller Country are Late 19th And Early 20th Century American Movements.