Classified for credit

Antique and vintage automobile museum covering the mechanical history of the automobile and the industrial developments of the early 20th century.

Maine lake state park with forested trails and freshwater shoreline — supports aquatic ecology, forest biology, and outdoor physical education.

Maine coastal state park with trails overlooking Cobscook Bay — supports coastal ecology, tidal geography, and field observation of migratory birds.

University-based public planetarium with dome shows — astronomy, orbital mechanics, and the physics of light and space exploration.

Museum dedicated to F.E. and F.O. Stanley (Stanley Steamer) — covers early automotive engineering, steam technology, and Maine industrial history.

Wildlife sanctuary founded by ornithologist Cordelia Stanwood, emphasizing bird ecology, wildlife rehabilitation, and Maine woodland biology.

Public observatory in coastal Maine — telescope-based astronomy programming covering celestial navigation, optics, and stellar science.

National Wildlife Refuge on Penobscot River featuring peatlands and wetlands — Maine bog ecology, waterfowl biology, and habitat conservation.

Maine DIF&W island wildlife management area with ferry access — supports ecology, migratory bird study, and field biology in a pristine river island setting.

Maine state park on Swan Lake with swimming, hiking, and freshwater habitat — ecology and outdoor education.

1755 Georgian-style home of a British naval mast-agent — covers colonial-era New England trade, shipbuilding economy, and 18th-century domestic life.

Working telephone museum in Ellsworth ME with historic equipment — covers the history and engineering of telecommunications technology.

Maine military history museum in Augusta with artifacts and exhibits spanning the Civil War through modern era — supports military history and Maine's role in American conflicts.

Photography arts museum in Portland covering the history and technique of photographic media — supports visual arts and media literacy curriculum.

200-acre urban bird sanctuary with marked trails — ornithology, native habitat study, and wildlife observation in a self-guided natural area.

Reversing tidal falls preserve on the Hancock tidal estuary — tidal hydrology, estuarine ecology, and coastal Maine watershed science.

Regional arts institution in Eastport, Maine with galleries focusing on maritime and border-region art history — supports visual art and cultural history studies.

Maine Audubon-affiliated coastal wildlife sanctuary offering field study in shorebird ecology and coastal habitat conservation.

Maine coastal state park with rocky shoreline and tide pools — supports marine biology, geology, and outdoor PE.

Old-growth white pine forest preserve along the Salmon Falls River — covers New England forest ecology, tree identification, and riparian habitat biology.

University-based planetarium with astronomy center — covers celestial mechanics, space science, and observational astronomy via live dome shows.

Pre-Civil-War Italian-villa mansion museum — Victorian decorative arts and 19th-century domestic life.

Municipal arboretum with labeled tree and plant collections — supports dendrology, botany, and seasonal plant biology.

Passamaquoddy tribal museum on Pleasant Point Reservation covering Indigenous history, language, and culture of the Waponahki people.