Classified for credit

Historic rice-field wetlands at Magnolia Plantation converted to Audubon bird sanctuary — waterfowl ecology, wetland biology, and Low Country land-use history.

Audubon-managed old-growth cypress swamp sanctuary — covers wetland ecology, bird biology, and forest conservation.

Audubon nature center with working farm and trails — covers bird ecology, sustainable agriculture, and native Ohio habitats.

Ice sculpture museum inside a permafrost environment at Chena Hot Springs, illustrating arctic science, geothermal energy, and ice properties.

Interactive aquarium with hands-on touch tanks and live marine animals — covers marine biology, animal adaptations, and aquatic ecosystems.

City-run nature and science center with live animals and hands-on exhibits — ecology, animal biology, and basic earth science.

Australia and Islands habitat section of Columbus Zoo featuring marsupials and Pacific wildlife in a conservation-focused setting.

Autodesk's public gallery in San Francisco showcasing design, engineering, and digital fabrication technology — covers CAD, manufacturing, and applied STEM.

Large museum covering the history and culture of the American West — addresses Indigenous peoples, westward expansion, and frontier art and material culture.

County park preserving a rare natural sandstone arch over LaPratte Creek — covers geomorphology, sedimentary rock formation, and Wyoming canyon ecology.

NPS Ancestral Puebloan monument with standing great house and kiva — covers pre-Columbian archaeology, pueblo architecture, and Chacoan trade networks.

Private wildlife preserve housing endangered African ungulates including giraffes and oryx — covers conservation biology and endangered-species breeding programs.

Guided eco-tours through Babcock Ranch wetlands and scrub habitat — covers Florida wildlife biology, solar-powered community land use, and conservation management.

Large FL ranch preserve with eco-tours — Florida wetland ecology and ranch-conservation model.

WV state park featuring a historic grist mill, river gorge ecology, and Appalachian forest biology with developed trails.

Coastal national wildlife refuge with barrier beach, marsh, and dune habitats — supports shorebird ecology and Atlantic coastal geography.

Iowa's oldest state park featuring limestone bluffs, trout streams, and diverse hardwood forest — supports ecology, geology, and watershed biology field study.

Florida Keys state park — coral-reef snorkeling, beach ecology, and tropical Atlantic flora.

Hands-on regional science center — covers physical science, life science, and STEM concepts through interactive exhibits.

Texas state park built around a 1.5-acre artesian spring-fed pool — desert hydrology and endemic fish.

Working-waterfront industrial museum with hands-on exhibits on Baltimore's manufacturing and maritime heritage — covers labor history and mechanical engineering.

Large national forest in the Cumberland Plateau with waterfalls, caves, and diverse Appalachian ecosystems — supports ecology, geology, and outdoor education.

Preserved ghost town and Montana gold-rush site — 19th-century pioneer settlement, mining history, and frontier life.

Aviary education center at Nashville's Grassmere with live bird ambassador programs — covers avian biology, behavior, and wildlife care.