United States National Register of Historic Places

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Ohio - Significance region: Local

North Ward District School
Norwalk Memorial Hospital
Norwalk Theatre
Norwell Residence
Norwood Mound
Norwood Municipal Building
Notre Dame Academy
Notre Dame Academy and Notre Dame High School
Notre Dame College of Ohio
Nurre-Royston House
Oakdale Cemetery Historic District
Oak Hill
Oak Hill Cottage
Oak Hill Welsh Congregational Church
Oakland Cemetery Chapel and Superintendent's House and Office
Oakland Residential Historic District
Oakwood Cemetery Chapel
Oakwood Club Subdivision Historic District
Oberlin Lake Shore And Michigan Southern Station
Observatory Historic District
Odd Fellows' Cemetery Mound
Odd Fellows Hall
Odd Fellows Hall
Odd Fellows' Home for Orphans, Indigent and Aged
Odd Fellows Temple
Oesterlein Machine Company-Fashion Frocks, Inc. Complex
Ohio Baptist General Association Headquarters
Ohio Bell Henderson-Endicott Exchange Building
Ohio Bell Southwestern Headquarters
Ohio Brass Company Office Building
Ohio City Preservation District
Ohio Farm Bureau Federation Offices
Ohio Finance Building
Ohio Hospital For Epileptics Stone Water Towers
Ohio Lantern Company
Ohio Moline Plow Company Building
Ohio National Bank
Ohio Power Company
Ohio Theatre
Ohio Theatre
Ohio Theatre
Ohio Valley Clay Company
Ohio Wesleyan University Fraternity Hill Historic District
Ohio Wesleyan University Student Observatory
Ohmer, Nicholas, House
Old Akron Post Office
Old Amherst Freight Depot
Old Bartlett and Goble Store
Old Beechwold Historic District
Old Carriage Barn
Old Center School
Old Central Post Office
Old City Hall
Old College Hill Post Office
Old District 10 Schoolhouse
Old Elyria Water Tower
Old Enon Road Stone Arch Culvert
Old Euclid District 4 Schoolhouse
Old Federal Building and Post Office
Old First Church
Old Funeral Palor
Old Harbour Store
Old Hotel, The
Old Interurban Station
Old Jib's Corner
Old Lawrence County Jail
Old Log Post Office
Old Maid's Orchard Mound
Old Mill
Old North End Historic District
Old Ohio Union
Old Peace Lutheran Church
Old Post Office And Federal Building
Old Railroad Station
Old River Road Historic District
Old School Privy
Old South Church
Old St. Mary's Church, School and Rectory
Old Stone Church
Old St. Patrick's Church
Old Tippecanoe Main Street Historic District
Old Union School
Old Union School
Old US Post Office
Old Vermilion Banking Company Building
Old Vermilion Mill
Old Wayne County Jail
Olin, Arvin, House
Olive Branch High School
Ollie's Tavern
Olmsted Falls Depot
Olmsted Falls Historic District
Omar Chapel
O'Neil's Department Store
Onesto Hotel
Ontario Building
O. P. Boyer’s and Sons Funeral Home
Open Air School
Oppmann Terrace
Orators Mound


Data from United States Park Service and Wikidata