Classified for credit

Remote Chihuahuan Desert national park with ranger programs covering geology, ecology, desert biology, and dark-sky astronomy.

Vast national park straddling the Chihuahuan Desert — covers desert ecology, geology, river systems, and Chihuahuan biodiversity with ranger programs.

Texas state park with in-situ dinosaur trackways in the riverbed — covers vertebrate paleontology, Cretaceous geology, and fossil preservation science.

AZA-accredited zoo with strong conservation programs — covers zoology, animal behavior, and wildlife biology across diverse biomes.

Drive-through wildlife center with native and exotic species conservation programs — covers zoology, ecology, and endangered-species biology.

Remote national park exposing ancient Permian reef geology and Chihuahuan Desert ecology — covers stratigraphy, desert biology, and physical geography.

Major natural-history and science museum with permanent halls in paleontology, gems, space science, and energy — extensive STEM curriculum coverage.

World-renowned art museum with pre-Columbian, Asian, and European collections — supports art history and cross-cultural studies; Louis Kahn building is architectural curriculum itself.

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

National museum covering the entire Pacific War (WWII) with artifact-rich galleries and oral histories — primary-source military history, strategy, and global geography.

Commercial cave tour through active limestone caverns — covers speleology, geology, karst formation, and cave ecosystems.

"Grand Canyon of Texas" — 800-ft canyon, badlands geology, and high-plains ecology in a developed state park.

Major hands-on science and natural history museum covering physics, geology, paleontology, engineering, and human biology across multiple floors.

NPS-operated network of four Spanish colonial missions — covers Spanish colonization, Native American history, and early Texas settlement with ranger-led programs.

NASA's official visitor center adjacent to Johnson Space Center — covers spaceflight engineering, mission history, astronaut training, and aerospace science.

1836 Texas Revolution mission-fortress with exhibits on the battle, Texas independence, and Spanish colonial history.

AZA-accredited zoo with over 750 species and conservation programs — applied zoology, ecology, and wildlife biology across diverse animal exhibits.

Sixth-floor museum in the former Texas School Book Depository documenting the Kennedy assassination — 20th-century political history and primary-source analysis.

NPS fossil site preserving Columbian mammoth bones in situ — covers paleontology, Pleistocene ecology, and excavation methods with ranger-led tours.

NPS site preserving ancient flint quarries used by Native Americans for 13,000+ years — archaeology, lithic technology, and pre-Columbian history.

NPS preserve protecting rare convergence of four North American ecosystems — field study in biodiversity, plant communities, and wetland ecology.

Bullock Texas State History Museum with extensive exhibits on Texas history from prehistory through modern era — Texas and US history with primary-source artifacts.

American Airlines aviation museum with full-size aircraft — covers aeronautical engineering, the history of commercial flight, and aviation technology.

Commercially operated cave system with extensive speleothem formations — covers geology, mineralogy, and karst formation processes.