Classified for credit

Museum dedicated to East Liverpool's ceramics and pottery industry — covers materials science, kiln chemistry, and the industrial history of American manufacturing.

Live reptile facility with native and exotic snakes, turtles, and alligators — covers herpetology, reptile biology, and South Carolina coastal ecosystems.

Museum dedicated to granite quarrying in Elberton, GA — covers geology, stone extraction processes, and the economics of the U.S. granite industry.

Education center for the Elephant Sanctuary in Tennessee — covers elephant biology, conservation science, and wildlife rehabilitation without direct animal contact.

Private collection of handbuilt miniature cars — covers scale engineering, metalworking, and mechanical design as applied art and craft.

Center displaying fragments of the 1879 Estherville meteorite fall — covers planetary science, meteoritics, and the geologic record of extraterrestrial impacts.

Hands-on science museum in Grand Junction — covers physical science, earth science, and STEM concepts through interactive exhibits suited to elementary-age learners.

Coastal oceanarium with live marine exhibits — covers marine biology, ocean ecosystems, and animal adaptations.

Interpretive center inside Philadelphia's 19th-century waterworks — covers municipal water treatment, hydraulic engineering, and environmental history.

Fossil and history museum in western Kansas featuring Niobrara chalk-bed specimens — covers paleontology, stratigraphy, and Kansas natural history.

Historic gristmill in West Virginia demonstrating grain milling mechanics — covers simple machines, water power, and Appalachian agricultural history.

Fire apparatus museum with historic engines and equipment — covers firefighting technology, engineering history, and public safety.

Working glass-arts center with hot-shop demos — covers the science of silica chemistry, heat and viscosity, and the craft history of glassblowing.

California State Historic Landmark powerhouse preserving original 1895 AC generators — covers electrical generation history, engineering, and energy transmission.

Historic transatlantic telegraph cable relay station — covers telegraphy, electrical communication history, and 19th-century global information networks.

University of Georgia natural history museum with fossil, mineral, and biological specimen collections supporting geology, ecology, and taxonomy studies.

Maryland state fish hatchery and aquatic education center — covers fish biology, aquaculture, and Chesapeake watershed ecology.

Working model railroad museum with large-scale layouts — covers engineering, scale modeling, and the history of rail transport.

Museum documenting NASA's Goldstone Deep Space Communications Complex — covers radio astronomy, telecommunications engineering, and space exploration history.

Regional archaeology and natural history collections covering Florida's prehistoric peoples, fossils, and ecosystems — applied anthropology and earth science.

Museum dedicated to Connecticut River shad migration and commercial fishing heritage — covers fish biology, river ecology, and regional history.

School-based public planetarium in Findlay — covers astronomy, planetary motion, and celestial navigation through projected sky programs.

MIT gallery of ship models and marine engineering artifacts — covers naval architecture, hydrodynamics, and the history of maritime technology.

Harvard mineralogy and geology collection with specimens from around the world — covers earth science, mineralogy, and crystallography.