Classified for credit

Working grist mill nature center with pond, trails, and ecology programs — covers mill mechanics, wetland biology, and local natural history.

Air Force airlift history museum at Dover AFB with aircraft spanning WWII to present — military history and aerospace technology.

Delaware Nature Society center with trails, wetlands, and naturalist programming — covers local ecology, wildlife biology, and field science.

Federal wildlife refuge on the Delaware Bay flyway — supports migratory bird biology, wetland ecology, and waterfowl conservation studies with observation towers and trails.

Coastal state park with beach, dunes, and WWII-era Fort Miles — covers coastal ecology, dune geology, and 20th-century military history.

Atlantic coastal beach within Cape Henlopen State Park — coastal ecology, dune formation, tidal biology, and Delaware Bay geography.

Delaware coastal state park with dunes, shorebird habitat, and WWII Fort Miles remains — supports ecology, coastal geology, and environmental science study.

Delaware aerospace education center offering hands-on aviation and space science programs — covers aerodynamics, physics, and STEM career pathways.

Hands-on children's museum on the Wilmington riverfront — interactive exhibits in physical science, engineering, and early literacy.

Natural history and science museum with fossil, geology, and wildlife exhibits covering earth science and regional ecology.

Delaware barrier-island state park with ocean beach and inland bays — covers coastal geology, Atlantic shoreline ecology, and barrier-island formation.

First American powder mill site along the Brandywine, founded by E.I. du Pont — covers early American industrial chemistry, gunpowder production, and the du Pont family legacy.

Civil War-era island fort used as a Union prison — covers fortification design, prisoner-of-war conditions, and Delaware River military history.

Civil War-era island fort used as a prison camp — covers Union military engineering, prisoner-of-war conditions, and Delaware Bay history.

Civil War–era fort on a Delaware River island — covers prisoner-of-war history, Civil War military operations, and mid-Atlantic geography.

Coral aquaculture and reef-fragment propagation facility — covers marine biology, coral reef ecology, and applied aquaculture science.

Preserved 18th-century grist mill complex and working farm — colonial industrial history, milling mechanics, and agricultural heritage.

Former du Pont gunpowder works on Brandywine Creek — covers early American industrial history, chemistry of explosives, and 19th-century manufacturing.

Native plant research garden and arboretum focused on mid-Atlantic flora — covers plant ecology, native species conservation, and botany.

Alfred I. du Pont's early-20th-century French chateau estate — covers Gilded Age economic history, estate architecture, and Delaware industrial heritage.

Heritage railroad operating 19th-century steam locomotives through rural Delaware — railroad history, industrial-era transportation, and regional social history.

Country estate museum preserving 175 rooms of American decorative arts — covers material culture, social history, and design from colonial to industrial eras.

Small zoo and education center with live animals — supports zoology, wildlife biology, and conservation education with hands-on animal interactions.

Working aquaponics operation in Dover — covers integrated fish and plant cultivation, nutrient cycling, water chemistry, and sustainable food systems.