The following properties were on the 2007 List of Ohio’s Most Endangered Historic Sites:
Arcade Buildings, Dayton
Open Space Surrounding Harding Memorial, Marion
White-Haines Building, Columbus
Ohio’s Historic Schools – Statewide
Seneca County Courthouse, Tiffin
Bell’s Opera House, Hillsboro
Franklin Square Neighborhood, New Philadelphia
Orange Road Bridge, Liberty Township, Delaware County
Over-the-Rhine Neighborhood, Cincinnati
Mehrum-Lindley Block, Hamilton
Cleveland Trust Tower, Cleveland
Shawnee Main Street Historic District, Shawnee
