Classified for credit

Restored 1772 Federal-period mansion in Worcester — covers colonial domestic life, trade history, and early American social structure.

Museum and visitor center documenting the Salton Sea's formation, ecological changes, and Southern California water history.

Museum documenting San Bernardino's railroad history with rolling stock and artifacts — industrial history, mechanical engineering, and westward expansion.

Electric railway museum and historic depot covering the history of urban transit, early electrical engineering, and railroad operations.

San Diego History Center in Balboa Park with archives and exhibits spanning California and Southwestern regional history from Spanish contact forward.

Free museum in the Embarcadero covering SF streetcar and cable-car history — mechanical engineering of transit and urban transportation history.

NPS site preserving the 1859 Pig War boundary dispute between the US and Britain — covers Pacific Northwest history, diplomacy, and geography.

NPS site marking the 1864 massacre of Cheyenne and Arapaho peoples — covers Native American history, U.S. Army policy, and 19th-century westward expansion.

Historic tugboat exhibit covering inland waterway commerce, maritime engineering, and Pacific Northwest shipping history.

Original Sanders Café where KFC was founded — covers American entrepreneurship, business history, and mid-20th-century roadside culture.

Narrow-gauge heritage railroad preserving Maine's 2-foot rail history — covers railroad engineering history and 19th-century transportation.

NPS-designated 19th-century trade corridor — covers westward expansion, manifest destiny, and historical geography of the Southwest.

Restored 17th-century iron works — covers colonial industry, early metallurgy, and the role of iron production in American economic history.

Museum and nature center on the historic Savannah-Ogeechee Canal — covers 19th-century civil engineering, transportation history, and riparian ecology.

Regional history museum in Schenectady covering the city's role in Edison-era electricity and industrial innovation.

Preserved historic schoolhouse museum illustrating 19th-century rural education methods, curriculum, and one-room school social structure.

Museum in Seneca Falls covering 19th-century canal waterway technology, industry, and the social history of the Erie Canal corridor.

Museum honoring Sequoyah, the Cherokee scholar who created the Cherokee syllabary — covers indigenous language, literacy history, and Cherokee Nation heritage.

Tennessee museum at Sequoyah's birthplace covering the Cherokee syllabary inventor and Cherokee cultural history and forced removal.

Museum documenting Shaker religious community life, craftsmanship, and communal social organization in 19th-century America.

Museum dedicated to Shelby American performance vehicles — covers automotive engineering history and American manufacturing heritage.

Shinnecock Nation cultural museum presenting tribal history, language, art, and sovereignty — Native American studies and Long Island indigenous history.

Museum dedicated to Sierra Nevada logging history — covers 19th-century timber industry, mill technology, and the environmental impact of old-growth logging.

Silver City, NM museum covering mining history, Apache history, and the development of the Southwest borderlands region.