Ohio - Architectural style - Second Empire architecture in the United States and Canada
| Black, Philip J., House |
| Bookwalter, Francis, House |
| Bossler, Marcus, House |
| Brown, Samuel N., House |
| Crafts William H., House |
| Darke County Courthouse, Sheriff's House, And Jail |
| Davey, John, House |
| Dayton, James, House, II |
| Dayton Women's Club |
| Dunlap, William K., House |
| Engels, Herman, House |
| Erie County Infirmary |
| Evans, Richard W., House |
| Guernsey County Courthouse |
| Henry County Sheriff's Residence and Jail |
| Hewson-Gutting House |
| Hower Mansion |
| Hull Place |
| Ikirt House |
| Jackson, Andrew, House |
| Jones, Elijah Pelton, House |
| Madison County Courthouse |
| Mills' Row |
| Nelson, Luman, House |
| Pabodie, Professor William, House |
| Palace Hotel |
| Pendleton, George Hunt, House |
| Pollack, Isaac, House |
| Powell, Henry, House |
| Reynolds, John R., House |
| Speaker, Charles, House |
| Spencer's Landing |
| Stager-Beckwith House |
| St. Aloysius Orphanage |
| Tubbs-Sourwine House |
| Van Wert County Courthouse |
| Wagner Palace |
| Wright, John, Mansion |
Data from United States Park Service and Wikidata
