Classified for credit

Guided botanical garden on Kauai featuring native Hawaiian plants and sculpture — covers tropical ecology, plant biology, and Hawaiian conservation.

Restored tallgrass prairie and bison reintroduction site — covers grassland ecology, native species, and conservation biology.

Living-history village depicting 1830s–1900s Illinois frontier life — supports 19th-century social history, pioneer trades, and Midwest settlement through costumed demonstrations.

Botanical garden with globally themed gardens — covers tropical and subtropical plant biology, conservation, and Florida ecosystem study.

Accredited zoo with Florida wildlife focus and conservation programs — supports zoology, animal adaptation, and biodiversity within a subtropical ecosystem context.

NASA Ames Visitor Center with aeronautics and space-exploration exhibits — covers aerospace engineering, physics, and space science.

NASA exhibit center at NASA HQ displaying Earth-observation data, climate science, and remote sensing — applied earth science, satellite technology, and environmental data literacy.

World-class indoor/outdoor sculpture collection with rotating exhibits — formal study of three-dimensional art and contemporary artists.

Nashville Zoo's Giraffe House offers close-up encounters with giraffes — supports zoology, animal behavior, and African wildlife conservation curriculum.

NPS site in Natchez preserving antebellum plantation and free Black history — covers slavery, Southern economy, and the Mississippi River's role in U.S. history.

444-mile historic trail through the Natchez Trace corridor — covers Native American trade routes, early American geography, and riparian ecology along maintained trail segments.

500-mile historic road corridor tracing a 10,000-year-old Native American and colonial trade route — covers archaeology, westward expansion, and geography.

Smithsonian-affiliated museum in Wilberforce, OH documenting African-American history from slavery through the civil rights movement.

Accredited aviary housing 600+ bird species with conservation programming — ornithology, avian biology, and global biodiversity.

Official Baseball Hall of Fame with artifacts spanning 150+ years — sports history, statistics, and American cultural history.

Museum dedicated to blues music history — covers African American musical heritage, the Great Migration, and the cultural roots of American popular music.

Museum dedicated to architecture and engineering covers structural systems, urban planning, construction technology, and civil engineering history.

Outdoor butterfly sanctuary and native habitat preserve on the Rio Grande — entomology, migration ecology, and native plant biology.

Interactive museum covering the American Civil Rights Movement and global human rights history — primary-source exhibits support civics, history, and social studies.

National children's museum in Washington DC with interactive exhibits spanning STEM, civic life, and the arts for young learners.

Working Corvette assembly plant adjacent to a dedicated museum — covers automotive engineering, manufacturing process, and 70 years of American industrial design.

Major museum in Oklahoma City covering the history and culture of the American West, cowboys, rodeo, and Native peoples of the Plains.

NSA-affiliated museum covering cryptology history from ancient ciphers to modern computing — supports math, history of technology, and national security studies.

Federal elk refuge hosting one of North America's largest elk herds — wildlife biology, migration ecology, and federal land management.