Alpena County Michigan has 5 places on the National Register of Historic Places including 2 places of Statewide significance. Significant places include Fishing Tug Katherine V and Thunder Bay Island Light Station, Alpena County Courthouse, Alpena Light and Middle Island Light.
Some of the country's most noteable architects helped create the Alpena County places including Henry Vincent, US Lighthouse Service, William H. Kuni, US Lighthouse Board, Webber,Henry C. and Construction Co.. Prominent architectural styles found in Alpena Country are .