Classified for credit

NPS fort site accessible by boat tour — Spanish colonial military history, the 1740 Matanzas Inlet massacre, and 18th-century coastal defense.

Civil War earthwork fort and museum on the Georgia coast — covers the Savannah campaign, coastal defense engineering, and Sherman's March to the Sea.

Preserved Civil War earthwork fort on the Ogeechee River with museum — coastal defense engineering, Sherman's March, and coastal ecology.

Star-shaped 1812-era fort where the bombardment that inspired the national anthem took place — War of 1812 and U.S. civic history.

Reconstructed War of 1812 earthwork fort with living-history demonstrations — covers early American military history, Northwest Territory conflicts, and period tactics.

Reconstructed 18th-century French and British fur-trade fort with living-history interpreters — colonial conflict, Great Lakes trade networks, and frontier life.

National monument preserving one of the oldest continuously active US Army posts — covers Civil War, Reconstruction, and coastal defense history.

Reconstructed 1800s Appalachian frontier settlement at Salem WV with period buildings and craft demonstrations — covers pioneer life and early West Virginia settlement.

Reconstructed 1830s Hudson's Bay Company fur-trade fort with costumed interpreters — covers Pacific Northwest exploration, fur-trade economics, and Native-settler contact history.

Reconstructed 1808 US government trading post and fort — covers westward expansion, Lewis & Clark-era diplomacy, and Native American trade relations.

NPS-managed Civil War–era brick fort beneath the Golden Gate — covers coastal defense history, military engineering, and the Civil War.

Civil War-era masonry fort where Union rifled artillery breached brick walls — covers military engineering, Civil War history, and coastal fortification design.

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.

Active Army post and national historic landmark with museum covering frontier military history, Native American relations, and the Indian Wars era.

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.

NPS visitor center for Fort Vancouver National Historic Site — covers the fur trade, British/American territorial history, and Pacific Northwest settlement.

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

Late-19th-century coastal artillery fort turned state park with intact batteries, bunkers, and Puget Sound maritime history.

Aviation museum with historic aircraft collection covering the history of flight, military aviation, and aerospace engineering.