Marion County Ohio has 15 places on the National Register of Historic Places including 2 places of National significance and 3 places of Statewide significance. Historic Places: Harding Tomb, Harding, Warren G., House, Caledonia Bowstring Bridge, Palace
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Marion County Bradfordsville Gravel Switch Lebanon Loretto Nerinx Raywick Saint Francis Saint Mary Marshall County Benton Calvert City Gilbertsville Hardin Martin County Beauty Debord Inez Lovely Pilgrim Tomahawk Warfield Mason County Dover Mayslick