Classified for credit

Museum tracing telephone technology from the telegraph era to modern communications — covers electrical engineering history and the science of signal transmission.

State museum dedicated to Route 66 in Oklahoma — covers 20th-century transportation history, American road culture, and economic geography.

Oklahoma's working state capitol with public galleries, legislative chamber tours, and exhibits on state government, statehood, and Native American history.

Museum documenting Oklahoma's territorial period and the 1889 Land Run — covers westward expansion, territorial governance, and pioneer settlement.

Oklahoma pop-culture museum tracing the state's music, film, and arts heritage — supports cultural history and American studies.

Regional museum in Elk City covering Oklahoma pioneer and Route 66 history through artifacts, period rooms, and local heritage exhibits.

Oklahoma state park in tallgrass transition zone — covers prairie ecology, regional geology, and Oklahoma geography through trails.

Urban nature center with trails, wetlands, and live animal exhibits — Oklahoma native species, riparian ecology, and hands-on natural-science programming.

Ranch and museum of Wild West showman Pawnee Bill covering frontier life, Buffalo Bill-era entertainment, and Plains history.

Small-scale exotic and native animal encounter facility in Oklahoma — supports zoology, animal behavior, and wildlife conservation discussion.

Oklahoma museum honoring women of the pioneer era — covers westward expansion, homesteading, and women's roles in frontier society.

County museum covering Pottawatomie County and Shawnee history including Native American heritage and Oklahoma settlement.

Oklahoma state park in the Wichita Mountains — covers granite outcrop geology, Great Plains ecology, and native wildlife observation.

Municipal nature park and interpretive center in Broken Arrow — supports local ecology, native species identification, and outdoor observation skills.

Oklahoma state park on Lake Raymond Gary — supports outdoor education in southeastern Oklahoma forest ecology, fishing biology, and recreational geography.

Cultural organization preserving Native American heritage through art and festivals — covers Indigenous history and social studies.

Railroad museum in Denison, TX documenting the Red River region's rail heritage — covers railroad expansion, regional economic history, and transportation geography.

Regional museum covering Red River Valley history, Native cultures, and frontier settlement — primary-source local and Western history.

Oklahoma state park with red-rock canyon geology, trails, and camping — covers sedimentary geology, erosion, and Oklahoma ecosystems.

Wichita Mountains Wildlife Refuge headquarters — supports wildlife ecology, federal land management, and Great Plains habitat study.

Oklahoma state park nature center adjacent to sandstone cave formations — covers geology, cave ecology, and Ouachita Mountain natural history.

Outdoor village preserving Route 66–era buildings and artifacts — 20th-century American road culture, westward migration history, and Oklahoma commercial heritage.

Route 66 antique automobile collection in Oklahoma — covers transportation history and mid-20th-century American road culture.

Small museum in a restored Route 66 service station showcasing motorcycle history — covers transportation technology and American road culture on Historic 66.