Classified for credit

Operating 1852 grist mill and Underground Railroad site — covers milling mechanics, water-power technology, and abolitionist history.

Federally managed tidal estuary refuge hosting up to one million shorebirds during spring migration — covers migratory ecology, wetland biology, and Pacific Flyway geography.

High-elevation Virginia state park with Appalachian balds, wild ponies, and highland ecology — supports Appalachian geography and field biology.

Northwest Florida coastal state park with rare dune lakes, salt marshes, and Gulf beach — supports coastal ecology, barrier-island geography, and outdoor PE.

Smithsonian National Zoo's Great Ape House — primate behavior, social structure, and great-ape conservation biology.

UNESCO World Heritage Hopewell Ceremonial Earthworks — covers Indigenous archaeology, pre-Columbian North American history, and ancient engineering.

National wildlife refuge protecting one of the East Coast's largest blackwater swamps — wetland ecology, hydrology, and biodiversity in a unique peat-bog ecosystem.

Hands-on children's museum with interactive science, literacy, and math exhibits — supports early STEM and language arts exploration.

NPS-managed Potomac River gorge park featuring geology, river ecology, and dramatic waterfalls accessible via ranger-guided programs.

Freshwater aquarium focused on Great Lakes ecosystems — covers fish biology, watershed ecology, and native species conservation.

Hands-on children's museum with interactive exhibits — covers early literacy, numeracy, and basic science concepts for young learners.

Regional zoo with conservation programming — supports zoology, animal adaptation, and wildlife conservation concepts.

Heritage center documenting Appalachian culture and Cherokee history adjacent to Great Smoky Mountains — pioneer life, indigenous heritage, and regional history.

Outdoor education center inside Great Swamp NWR — wetland ecology, bird identification, and watershed science with ranger programs.

Mississippian-culture ceremonial mound at Ocmulgee National Park — covers pre-Columbian Indigenous civilizations and archaeological methods.

Regional science museum with attached planetarium — covers earth science, astronomy, and physical science through exhibits and sky shows.

Urban freshwater and Great Lakes aquarium in Cleveland — covers aquatic biology, freshwater ecology, and Great Lakes conservation.

Urban botanical garden with conservatory and outdoor collections — plant biology, taxonomy, and sustainable horticulture.

Large accredited zoo in British Columbia with 100+ species — covers zoology, conservation biology, and animal adaptations.

Historic estate garden featuring 80+ topiary sculptures — covers horticultural science, plant shaping techniques, and landscape history.

Green Bank Observatory hosts the world's largest fully steerable radio telescope — covers radio astronomy, electromagnetic spectrum, and data science.

World's largest fully steerable radio telescope with visitor center and guided tours — covers radio astronomy, physics, and engineering.

Working radio telescope observatory with science center exhibits — covers radio astronomy, electromagnetic spectrum, and the science of how telescopes collect data.

World's largest fully steerable radio telescope with guided tours — covers radio astronomy, electromagnetic spectrum, and astrophysics.