Classified for credit

Former New Deal-era amusement park now a National Park Service arts center with historic carousel, studios, and cultural programming.

Small aquarium at a historic NPS park site with native freshwater and aquatic exhibits — supports aquatic biology and local watershed ecology.

Maryland state fish hatchery and aquatic education center — covers fish biology, aquaculture, and Chesapeake watershed ecology.

Castle-themed children's museum with hands-on play and learning stations — supports early literacy, numeracy, and imaginative learning.

NPS-managed forest park near Washington DC with ranger programs covering eastern woodland ecology, trail biology, and outdoor skills.

Maryland state park with a 42-acre lake, forest trails, and wildlife habitat supporting biology and ecology field studies.

Chesapeake Bay shoreline nature center at Greenbury Point offering tidal habitat observation, migratory bird study, and estuary ecology adjacent to the Severn River.

Maryland state park on the Patuxent River with trails and wildlife habitat — supports ecology, watershed biology, and outdoor physical education.

Chesapeake Bay watershed state park unit with tidal marsh, beach, and forest habitats supporting ecology, wetland biology, and field study.

18th-century Georgian mansion in Annapolis — covers Colonial-era architecture, Maryland history, and the lives of planter-class families before the Revolution.

NPS historic site preserving a 18th-century Georgian mansion and slave quarters — covers colonial plantation life, slavery, and the history of a wealthy Baltimore County family.

NPS historic site preserving an 18th-century Maryland estate with working farm — covers plantation agriculture, gentry life, and early American history.

NPS-managed 18th-century plantation site in Maryland — covers Colonial-era plantation history, slavery, and tidewater agriculture.

Maryland state park with lake, forest trails, and ranger programs covering freshwater ecology, local wildlife, and outdoor recreation.

Nature center near Catoctin Mountain — supports field ecology, forest biology, and seasonal natural history observation in a Maryland woodland setting.

Small Baltimore County nature center with trails and wildlife habitat — supports local ecology, native species identification, and outdoor environmental education.

Preservation organization with walking tours of 18th-century Annapolis — covers colonial, Revolutionary, and maritime history.

Historic Ellicott City preservation organization supporting the 19th-century mill town streetscape — covers industrial history and Maryland settlement.

Documented Colonial-era plantation on the Patuxent River covering 300 years of Maryland history including enslaved labor and Tidewater agriculture.

Visitor center for Maryland's first colonial capital — gateway to the living-history site covering 17th-century English settlement, colonial governance, and Chesapeake life.

Federal-period mansion on Johns Hopkins campus — covers early American domestic life, architecture, and Maryland gentry history.

Prince George's County public planetarium and science center — covers astronomy, space science, and mathematics through shows and hands-on exhibits.

Cultural center documenting African American history and heritage in Howard County — supports civil rights history and social studies.

Maryland land trust conservancy with trails, farm, and nature education programs — covers ecology, native plants, and watershed stewardship.