Victoria Mansion
- A Victorian-era house museum designed in the Italianate style with important original interiors by Gustave Herter. History, restoration, and tour information provided.
- http://www.victoriamansion.org/

Portland Harbor Museum
- Maritime museum in the Old Port area, with featured exhibits on 19th century shipbuilding, working lighthouse, historic fort, and scenic Casco Bay walkway.
- http://www.portlandharbormuseum.org/

Maine Narrow Gauge Railroad Company and Museum
- A non-profit, all volunteer organization dedicated to preserving Maine narrow gauge railroad equipment.
- http://www.mngrr.org/

Portland Museum of Art
- Portland. Exhibition schedules, current online show, educational programs and other links provided.
- http://www.portlandmuseum.org/