Classified for credit

Automobile museum focused on vintage Flying-A-era cars — covers automotive history and early 20th-century transportation technology.

Aviation history exhibit at the site of Roosevelt Field — covers early flight history and aerospace milestones including Lindbergh's transatlantic departure.

19th-century home museum in Sandusky documenting abolitionist activity and Lake Erie regional history including Underground Railroad connections.

Small-town museum covering Folsom, NM history including the Folsom Man archaeological discovery — paleontology and early human settlement of North America.

Museum inside Folsom State Prison covering California penal history, criminal justice reform, and 19th-century law enforcement — primary-source social studies.

NPS site preserving Apache Wars-era fort — covers U.S.-Apache conflict, frontier military history, and Southwest geography.

Civil War-era Union fort on the Potomac — preserves earthworks and artillery emplacements covering 19th-century coastal defense and military engineering.

NPS site preserving a colonial-era British fort on the Georgia coast — covers colonial history, military engineering, and early American settlement.

Well-preserved Civil War–era granite fort on the Penobscot River — covers 19th-century military engineering, coastal defense strategy, and Maine history.

Military history museum at former Army base in San Pedro, CA — covers WWII coastal defense, harbor artillery, and Southern California military history.

Historic Civil War coastal fort guarding Mobile Bay — 1864 Battle of Mobile Bay history and military architecture.

NPS battlefield where Washington suffered his first major defeat — covers French and Indian War strategy, colonial military history, and frontier geography.

Montana state park preserving the 1850 adobe fur-trade fort of John Owen — covers westward expansion, fur trade economics, and early Montana settlement.

19th-century railroad depot museum — covers the history of rail transportation and its role in Alabama's industrial and community development.

Regional museum covering Revolutionary War–era Mohawk Valley history, including Fort Plain's role in the frontier campaigns of 1779–1780.

NPS site of the Lost Colony of Roanoke — covers early English colonization, the Elizabethan era, and the mysteries of America's first settlement attempt.

Fort Robinson State Park Museum covers the post-Indian Wars frontier military era and Buffalo Soldiers history in Nebraska — US military and Western history.

U.S. Army museum at Joint Base San Antonio covering military history from the Spanish-American War through modern operations.

National Historic Site preserving Judge Isaac Parker's federal court and frontier jail — covers Reconstruction-era law, Native Territory jurisdiction, and westward expansion.

Largest 19th-century U.S. Army fort ruins on the Santa Fe Trail — covers westward expansion, military history, and Plains-era commerce.

NPS-managed fort on the Potomac River active from the Revolution through WWI — covers coastal defense engineering, military history, and Chesapeake geography.

Museum inside the Fort Worth Stockyards covering the cattle-drive era, meatpacking industry, and the history of the American West.

Museum and observation deck inside the 1929 Foshay Tower covering Art Deco architecture, Minneapolis business history, and early skyscraper engineering.

National monument at the birthplace and homestead of Frances Perkins, first female U.S. Cabinet secretary — covers New Deal labor history and women's civic leadership.