The Castle
- Furnished with items of historical significance to the area, as well as those typical of the Victorian era. Features educational programs, special events, and changing exhibits.
- http://www.mariettacastle.org/

Ohio River Museum
- Depicts the golden age of the steamboat, and the enduring relationship between man and the river. Provides operation hours, admission, and program details.
- http://www.ohiohistory.org/places/ohriver/

Campus Martius Museum
- Highlights migration in Ohio's history, located on the site of the first organized American settlement in the Northwest Territory. Provides admission, location, and program details.
- http://www.ohiohistory.org/places/campus/

Harmar Station
- Historical model railroad museum. Provides pictures, directions, and contact details.
- http://www.eekman.com/harmarstation/