Classified for credit

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

Community college planetarium in Salinas — covers astronomy, celestial mechanics, and the night sky through projected shows.

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

University-affiliated science center in Arkadelphia — hands-on STEM exhibits covering physical and life sciences for K–12 learners.

Working Vermont farm with corn maze and seasonal agriculture demonstrations — covers plant science, crop cycles, and sustainable farming practices.

Maui wildlife discovery center with exhibits on Hawaiian endemic species — covers island biogeography, conservation biology, and native fauna.

Licensed wildlife hospital rehabilitating Hawaii's native birds and animals — covers vertebrate biology, native species conservation, and island ecology.

MIT-operated research radio telescope facility — covers radio astronomy, electromagnetic spectrum, and antenna engineering for advanced STEM learners.

Hands-on science center in Myrtle Beach with interactive STEM exhibits covering physics, life science, and applied technology.

Biodiversity exhibit hall at the Springfield nature center — taxonomy, ecosystems, and the diversity of life across major animal and plant groups.

Rural Kansas science resource center near the Haviland meteorite crater site — covers Earth science, meteorite geology, and physical science with hands-on exhibits.

Public observatory in Detroit with telescopes and astronomy programming — covers celestial mechanics, optics, and observational astronomy.

Campus planetarium offering sky shows and astronomy programming — covers celestial mechanics, constellations, and space science.

Wildlife rehabilitation center in PA — covers native animal biology, injury causes, and ecosystem roles through ambassador animal encounters.

Public observatory at Hemlock Crossing Park with telescopes available for scheduled viewings — astronomy, optics, and celestial mechanics.

State-operated freshwater fish hatchery with raceway tours — applied biology, aquaculture, and water resource management.

Aviation education center at Dallas Executive Airport — covers aerodynamics, aerospace history, and principles of flight.

Public planetarium in Albany covering astronomy, celestial navigation, and the life cycle of stars through dome shows and exhibits.

NPS visitor center for the Ice Age National Scientific Reserve — covers glacial geology, kettle lakes, moraines, and Wisconsin's Pleistocene landscape.

Private dark-sky observatory in the Appalachian foothills offering public viewing sessions — covers astronomy, telescope optics, and planetary science.

Public observatory near Rapid City offering telescope viewing and astronomy education — covers celestial mechanics and observational astronomy.

Museum dedicated to Hieronymus Mueller's 19th-century manufacturing innovations — covers mechanical engineering, patent history, and applied physics.

NCAR/UCAR facility with public exhibits on atmospheric and solar science — covers meteorology, climate research, and high-altitude observation.

Public observatory atop Seattle's Columbia Center — covers urban light-pollution astronomy, telescope optics, and celestial observation.