Classified for credit

19th-century Victorian estate in Livermore Valley — covers California ranching history and late-1800s domestic social history.

Visitor and education center documenting Ronald Reagan's life and presidency — covers Cold War history, conservative political movement, and 20th-century U.S. policy.

NPS site documenting WWII civilian war production and the Home Front experience — covers labor history, industrial mobilization, and women's roles in wartime.

Museum in Barstow dedicated to Route 66 history — covers 20th-century American transportation, westward migration, and roadside culture.

Sacramento history museum in the restored 1854 City Hall covering the Gold Rush, California statehood, and Sacramento's role as the transcontinental railroad terminus.

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.

Site of the 1846 Mexican–American War Battle of San Pasqual — covers Manifest Destiny, military history, and California's transition to U.S. statehood.

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

Reconstructed 1800s-era ghost town near Lake Isabella — covers California Gold Rush-era settlement, mining history, and frontier life.

African American heritage museum honoring Sojourner Truth — covers abolitionist history, the Underground Railroad, and the Civil Rights movement.

Ventura County heritage museum on a historic ranch site covering Chumash history, rancho era, and early California settlement.

Museum dedicated to the Beat Generation writers with original manuscripts, photos, and artifacts — covers 1950s American literary and cultural history.

The California Museum in Sacramento explores California history, culture, and the state constitution — California history, civics, and notable Californians.

Museum dedicated to cowboy and ranching heritage of the American West — covers westward expansion, cattle industry economics, and frontier social history.

Landmark 1908 Arts and Crafts bungalow by Greene & Greene — illustrates Progressive Era domestic architecture and the American Arts and Crafts design movement.

Collection of antique horseless carriages illustrating early automotive engineering and the transition from horse-drawn to motorized transport.

Museum preserving Cold War-era artifacts from East Germany — covers 20th-century European history, propaganda, and geopolitics.

County museum covering San Joaquin Valley settlement, agriculture, and Native Yokuts history through artifacts and exhibits.

NPS unit commemorating the WWII Japanese American internment site at Tule Lake — 20th-century civil rights, constitutional history, and WWII social studies.

Military museum dedicated to Navy Construction Battalions (Seabees) — covers WWII and modern military engineering history and naval service.