Classified for credit

University-operated public observatory — covers observational astronomy, telescope optics, and celestial mechanics.

Public planetarium with full-dome shows — covers solar system, stellar astronomy, space science, and related mathematics.

Private astronomy education business offering telescope sessions and sky tours — covers celestial mechanics, constellations, and observational astronomy.

University of Hawaii research astronomy institute — covers telescope optics, solar system science, and Mauna Kea observatory programs.

The only cryptozoology museum in the world — covers folklore of undiscovered species, critical thinking about evidence, and the history of zoological discovery.

Chicago museum tracing the history of surgical instruments and medical techniques — covers human anatomy, medical science, and healthcare history.

Museum tracing the history of papermaking technology from hand production to industrial mills — covers materials science, chemistry, and manufacturing history.

Physical archive of the Internet Archive in Richmond — covers digital preservation, computer history, and information science.

Community college public planetarium — covers stellar astronomy, solar system mechanics, and celestial navigation.

Regional science center and natural-history museum on Iron Hill — geology, local paleontology, and ecology exhibits with hands-on activities.

College-operated digital planetarium with public shows — covers solar system, stellar evolution, and celestial navigation through live and recorded programming.

Working pumpkin farm with seasonal crops — covers plant life cycles, agricultural science, and seasonal botany.

Space exploration history center at a former WWII radar site — covers radio astronomy, satellite technology, and Cold War-era space science.

Illinois State University planetarium with dome theater — covers stellar astronomy, constellations, and the physics of light.

University-operated public observatory with telescopes available for scheduled viewing nights — covers astronomy, optics, and celestial mechanics.

Community observatory near Traverse City offering public telescope viewing — covers stellar astronomy, optics, and the scientific use of observational instruments.

Lower Colorado River Authority hydroelectric dam on Lake Travis — covers fluid dynamics, electricity generation, and civil engineering in an applied context.

Public observatory at Western Nevada College with telescope viewing and astronomy programs — covers optics, celestial mechanics, and astrophysics.

Working whiskey distillery with public tours — fermentation chemistry, distillation physics, and the history of American spirits production.

Federally operated fish hatchery raising cutthroat and other native trout — applied aquaculture, salmonid biology, and Wyoming watershed conservation.

Small public planetarium serving Northwest Georgia — dome presentations cover astronomy, the solar system, and basic celestial navigation.

Public observatory with telescopes and astronomy programs — covers optics, planetary science, and observational astronomy.

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

Submillimeter radio telescope at Mauna Kea — visitor center covers radio astronomy, international science collaboration, and electromagnetic wavelengths.