Classified for credit

Active NASA launch pad at Kennedy Space Center — covers rocket propulsion, orbital mechanics, and the history of U.S. human spaceflight.

Historic Apollo-era Launch Control Center at Kennedy Space Center — covers aerospace engineering, mission control operations, and space exploration history.

National monument with lava tube caves and volcanic geology — covers speleology, volcanology, and the 1872 Modoc War battlefield history.

Ranger-guided marble cave tour in Great Basin NP covering speleothem formation, geology, and cave ecology.

Large interactive science center with exhibits spanning life sciences, physics, health, and technology — strong hands-on curriculum support across grade levels.

LIGO gravitational-wave observatory with public visitor center — covers physics of spacetime, interferometry, and Nobel Prize-winning astrophysics research.

Large inland aquarium with ocean, freshwater, and rainforest exhibits — covers marine biology, ecosystems, and animal adaptation.

Commercially operated limestone cavern system — covers speleology, karst geology, cave formation, and mineralogy through guided tours.

World's longest known cave system with guided tours — covers speleology, karst geology, cave ecology, and geologic time.

Mammoth Cave National Park, the world's longest known cave system, offers ranger-led tours covering speleology, geology, and karst hydrology.

Active paleontological dig site where Columbian and woolly mammoth remains are excavated in situ — covers paleontology, Pleistocene geology, and Ice Age ecology.

World's first full-scale plutonium production reactor at Hanford Site — covers nuclear physics, WWII history, and the science of the Manhattan Project.

Major hands-on science center in Baltimore's Inner Harbor — covers physics, astronomy, earth science, and biology through interactive exhibits and an IMAX dome.

Hawaiian marine aquarium with open-ocean tunnel and live reef exhibits — covers Pacific marine biology, coral-reef ecology, and oceanography.

World-class telescope complex atop Mauna Kea — covers astrophysics, optics, atmospheric science, and the geology of shield volcanoes.

World-class observatory summit with visitor center covering astronomy, atmospheric science, and Hawaiian volcanic geology.

Working research observatory in the Davis Mountains with public star parties and visitor programs — astronomy, optics, and astrophysics observation.

Major hands-on science center — physics, chemistry, biology exhibits and an IMAX dome.

Best-preserved meteorite impact crater on Earth with visitor center and museum — covers planetary geology, impact physics, and astrogeology.

Observatory at Meteor Crater (Barringer Crater) — impact-crater geology, astronomy, and planetary science.

Visitor center at the best-preserved meteorite impact crater in the world — covers planetary geology, impact physics, asteroid science, and crater formation.

Large natural-history and anthropology museum with immersive dioramas, fossil halls, and a working butterfly vivarium — covers geology, biology, and world cultures.

Public fossil park where visitors dig for Pennsylvanian-era marine invertebrate fossils — covers paleontology, stratigraphy, and Earth history hands-on.

MIT's public museum in Cambridge — covers robotics, artificial intelligence, holography, and the history of science and engineering research.