Classified for credit

Preserved 1840s frontier military fort with restored buildings and ranger programs covering pre-Civil War U.S. expansion and military history.

Active U.S. Army post and National Historic Landmark with museums covering frontier-era military history, Native American history, and the Indian Wars.

Reconstructed Revolutionary War fort with living-history programs — covers the Northern theater of the American Revolution and 18th-century frontier military strategy.

National Monument marking the 1861 Confederate capture of Fort Sumter — primary-source Civil War history and the causes of secession.

Restored 18th-century fort critical in the French and Indian War and Revolution — military history, fortification engineering, and colonial-era geopolitics.

Reconstructed 1828 fur-trade fort on the Missouri River — covers westward expansion, Plains Indian relations, and 19th-century commerce.

NPS living-history site reconstructing the 1845 Hudson's Bay Company fur-trade fort — covers westward expansion, Pacific Northwest history, and cross-cultural trade.

Reconstructed French and Indian War fort on Lake George with costumed interpretation covering colonial warfare and 18th-century military life.

Historic 1719 tavern museum where Washington bid farewell to his officers — covers Revolutionary War, colonial social life, and early American political history.

Railroad museum with restored locomotives and rolling stock — covers railway history, steam and diesel engineering, and the role of rail in American commerce.

Living-history prairie farm preserved from the 1840s — covers 19th-century agricultural practices, animal husbandry, and westward settlement.

Historic estate and museum dedicated to photography's invention and evolution — covers optics, chemistry, and visual communication history.

NPS-managed birthplace of George Washington with reconstructed colonial farm — covers colonial-era history, plantation agriculture, and early American biography.

National monument at George Washington Carver's birthplace covering his life, agricultural science research, and contributions to botany and chemistry.

Gibbs Farm living-history site near St. Paul depicting 1800s Dakota and pioneer farm life through hands-on demonstrations.

NPS-preserved 13th-century Mogollon cliff dwellings — covers pre-Columbian Indigenous architecture, archaeology, and Southwestern cultural history.

Museum housing Thomas Gilcrease's collection of American West art and Indigenous artifacts — covers U.S. history, westward expansion, and Native American cultures.

Aviation museum on the site of Glenn L. Martin's plant — covers Maryland aviation manufacturing history, aerospace engineering pioneers, and WWII aircraft production.

NPS site at Promontory Summit marks the 1869 transcontinental railroad completion — covers industrial engineering history, westward expansion, and labor history.

Former military island in New York Harbor now a national monument — covers colonial, Revolutionary, and Civil War–era military history with harbor geography.

Elvis Presley's estate and museum — covers mid-20th century American cultural history, the rise of rock and roll, and celebrity as social phenomenon.

NPS living-history ranch preserving an 1860s–1880s cattle operation — covers ranching economics, westward expansion, and the open-range cattle industry.

Former du Pont gunpowder works on Brandywine Creek — covers early American industrial history, chemistry of explosives, and 19th-century manufacturing.

Official US Navy museum in Norfolk covering Hampton Roads naval history from the Civil War ironclad battle through modern fleet operations.