Classified for credit

LEGO-themed amusement park — limited structured curriculum content; best supported by supplementary STEM or engineering design activities.

Lehigh River gorge access point with trails along a glacially carved canyon — covers river geology, riparian ecology, and topographic geography.

Regional zoo with diverse animal collection — supports zoology, animal adaptation, and conservation biology curriculum goals.

Guided tours of limestone caverns in Great Basin NP — covers speleology, geology, and cave formation processes.

Yale-affiliated public observatory and planetarium — covers celestial mechanics, telescope optics, and astronomical observation.

Malibu coast state park with accessible tide pools and sea caves — covers intertidal ecology, marine biology, and California coastal geography.

Pennsylvania state park overlooking Pine Creek Gorge ('PA Grand Canyon') — supports geology, Appalachian ecology, and watershed geography.

Hands-on science and nature center with live animals and ecology exhibits — covers biology, wildlife rehabilitation, and environmental science.

55-acre Orlando botanical garden with diverse plant collections — supports plant biology, horticulture, and ecosystem comparison curriculum.

Restored home of prominent Underground Railroad conductors Levi and Catharine Coffin — primary-source study of abolitionism, the UGRR network, and antebellum civic courage.

Lewis & Clark Caverns State Park with guided limestone cave tours — covers speleology, cave formation, and Montana geology in a well-developed visitor facility.

Guided limestone cave tours in a Montana state park — covers speleology, karst geology, and cave ecosystem biology.

Family farm and small zoo in New Era, MI with domestic and exotic animals — covers animal husbandry, zoology, and agricultural science in a hands-on setting.

NPS site at the Lewis and Clark Expedition's 1805–06 winter camp — covers exploration history, indigenous relations, Pacific Northwest geography, and natural history.

Large botanical garden with themed collections and a conservatory — covers plant taxonomy, horticulture, and ecosystem diversity.

Site of the opening shots of the American Revolution — primary-source Revolutionary War history and early American civics.

Hands-on children's museum with interactive exhibits — supports early literacy, basic math concepts, and introductory science exploration.

Lexington history museums at Depot Square — covers the American Revolution, Battle of Lexington, and Massachusetts colonial history.

Aviation museum on Lake Erie featuring WWII-era aircraft and a PT boat — covers military aviation history, aeronautical engineering, and WWII naval operations.

Operational WWII Liberty Ship open for tours — covers wartime maritime history, cargo ship engineering, and the homefront economy.

State park on Hudson River waterfront offering direct views of the Statue of Liberty and Ellis Island — immigration history and civic geography.

Historic mountaintop research observatory with public tours — covers astrophysics, telescope optics, and the 19th-century history of American observational astronomy.

Omaha's Henry Doorly Zoo indoor jungle habitat — tropical ecology, rainforest biodiversity, and conservation biology.

LIGO gravitational-wave observatory with public science center — covers laser interferometry, Einstein's general relativity, and experimental physics.