Classified for credit

Coastal petroglyph field with over 3,000 ancient Hawaiian rock carvings — covers indigenous Hawaiian culture, pre-contact history, and archaeological methods.

Outdoor and indoor aircraft collection at Pueblo Airport covering military aviation history from WWII through the jet age — supports aerospace history and aerodynamics.

Place of Refuge NHP — pre-contact Hawaiian sanctuary, royal grounds, and reef tide-pool ecology.

Ancestral Pueblo cliff dwellings on Santa Clara Pueblo land — covers pre-Columbian architecture, Indigenous history, and Southwestern archaeology.

Preserved Cold War Minuteman missile launch control facility — covers nuclear deterrence history, military strategy, and aerospace technology.

Operating living-history farm demonstrating 18th–19th century Pennsylvania German rural life — covers agricultural history, domestic crafts, and Colonial-era social studies.

Stuhr Museum's 19th-century railroad-era town at Grand Island — living-history exhibit covering Great Plains settlement and railroad expansion.

Museum dedicated to Pennsylvania Railroad history in Altoona — covers steam and diesel locomotive engineering, labor history, and the role of rail in U.S. industrialization.

Working 1897 steam railroad roundhouse with restoration shop — covers railroad history, steam engine mechanics, and the role of rail in California's development.

Traveling exhibition on Golden Age of Piracy featuring authentic artifacts and Atlantic maritime trade history from the 17th–18th centuries.

Reconstructed Hudson's Bay Company fur-trade fort with living-history interpreters — covers westward expansion, Pacific Northwest history, and colonial trade economies.

NPS site in Beaufort covering Reconstruction-era politics, African American citizenship, and post-Civil War Southern society.

Restored 1810 grist mill village with working waterwheel and 40 on-site historic structures — milling technology, 19th-century industry, and local history.

Museum dedicated to African American history and culture in Maryland, covering slavery, civil rights, and Black entrepreneurship.

WWII veteran heritage center honoring ace pilot Richard Bong with aircraft exhibits and primary-source materials on Pacific theater history.

Presidential library and museum at Nixon's birthplace — Cold War history, Watergate constitutional crisis, and 20th-century U.S. foreign policy.

NPS Civil War battlefield park with multiple sites around Richmond — covers Peninsula and Overland Campaigns, military strategy, and Reconstruction.

Civil War medical museum at the largest hospital site in the Confederacy — covers Civil War history, 19th-century medicine, and military surgery practices.

Sternwheeler riverboat tour on the Chena River covering Alaska Native culture, gold-rush history, and Fairbanks settlement.

Narrow-gauge heritage railway operating restored steam and diesel equipment in northern Wisconsin — railroad history, mechanical engineering, and transportation history.

Living-history village at Hocking College replicating an 1800s Ohio pioneer settlement — hands-on study of frontier domestic life and 19th-century trades.

Civil-rights museum at the school where the 1951 student strike led to Brown v. Board — primary-source civil-rights history.

Living-history ranch at Garden of the Gods covering Ute, homestead, and Victorian farming eras — hands-on pioneer skills and Colorado settlement history.

Operating electric trolley museum with vintage streetcar rides — covers transportation history and early electric rail technology.