Franklin County Pennsylvania (Vacant / Not In Use) has 6 places on the National Register of Historic Places including 2 places of Statewide significance. Significant places include Carrick Furnace and Red Run Lodge, Corker Hill, Gass House and Handycraft Farmstead.
Some of the country's most noteable architects helped create the Franklin County places including H. F. Smith and Henry O. Smith. Prominent architectural styles found in Franklin Country are Colonial Revival, Federal and Georgian.