Benewah County Idaho has 9 places on the National Register of Historic Places including 1 place of National significance and 7 places of Statewide significance. Significant places include Mullan Road, Benewah County Courthouse, Chatcolet CCC Picnic and Camping Area, Coeur d'Alene Mission of the Sacred Heart and Kootenai Inn.
Some of the country's most noteable architects helped create the Benewah County places including CCC, D.J. Barker, Meyers & Telender and Julius Zittel. Prominent architectural styles found in Benewah Country are Classical Revival and Tudor Revival.