The 1876 Grand Union Hotel, also called El Hotel Grande, and eventually the Stagecoach Inn, has had a variety of uses during its existence. It has served as post office, tearoom, boys' military school, restaurant, and exclusive gift shop. A cowboy movie starring Hoot Gibson and Sally Eilers was filmed here in the 1930s. Around the Stagecoach Inn are the Tri-Village buildings, made up of replicas of a pioneer home, a Spanish-Mexican adobe, and a Chumash Ap (tule dwelling), representing the three historic eras in the Conejo Valley.

The museum offers tours, exhibits, and educational programs.

The Foundation operates four historic house museums, including the 1858 Greek Revival style Earle-Napier-Kinnard House, the 1877 Italianate Villa East Terrace, the 1868 Greek Revival Style Fort House, and the 1866 McCulloch House. Fort House Museum displays exhibits from the Heritage Collection of textiles, garments, and accessories; and the other homes display seasonal vignettes from the collection. The Foundation itself is housed in the 1890s Queen-Anne-style Victorian Hoffman House.

The houses offer tours, exhibits, lectures, workshops, and other educational and recreational programs.

The Titan Missile Museum is the only publicly accessible Titan II missile site in the nation. Visitors can tour the underground missile site and see the 3-ton blast doors, the 8-foot-thick silo walls, and an actual Titan II missile in the launch duct. They can also visit the launch control center and experience a simulated launch.

The museum offers tours and educational and recreational programs.

The Society maintains the Los Alamos Historic Museum and Bookshop as well as the Los Alamos Historical Archives. The Los Alamos Historical Museum is dedicated to preserving, protecting, and interpreting the history of Los Alamos. Housed in the Guest Cottage of the Los Alamos Ranch School—a favorite place of Gen. Leslie Groves during the Manhattan Project—the museum features exhibits on local geology, anthropology, the 1917 elite Ranch School, and the Manhattan Project, as well as changing exhibits.

The society offers lectures and educational programs; the museum offers exhibits, tours, and educational programs.

The Society maintains the 1898 Newland House, the oldest residence built in the city of Huntington Beach, as a museum.

The museum offers tours.

The Linn County Historical Museum is housed in Brownsville's original railroad depot and holds collections and information representing all of Linn County. The museum also cares for the Moyer House, an elegant home completed in 1881 by pioneering figures of Brownsville.

The museum and house offer exhibits, tours, and occasional living history events.

The Society seeks to promote and preserve the natural, civil, literal, and ecclesiastical history of the Harbor area in general and the City of Costa Mesa in particular. The Society's museum present exhibits tracing the area's history from prehistory to the present day. The Society also maintains the Diego Sepulveda Adobe (the Estancia), the history of which stretches back to the 1700s. Four distinct periods of California history are represented in the rooms of the Estancia—Indian, Mission, Spanish, and Victorian—and the Society has used these periods as guidelines for furnishing the Adobe.

The museum and adobe offers exhibits and tours.

The Autry National Center celebrates the American West through three important institutions: the Museum of the American West, the Southwest Museum of the American Indian, and the Institute for the Study of the American West. The Autry was established in 2003 following the merger of the Southwest Museum, the Women of the West Museum , and the Museum of the American West (formerly the Autry Museum of Western Heritage). Through innovative exhibitions, a broad range of programs, and an extensive collection of art and artifacts, the Autry National Center explores the distinct stories and interactions of cultures and peoples, and their impact on the complex, evolving history of the American West.

The museums provide exhibits, tours, performances, film screenings, and other educational and recreational programs.

The Museum’s national-award-winning exhibits comprise 14,280 square feet and over 10,000 artifacts – tools and equipment - telling the stories of the Columbia Plateau Tenino and Wasco people, Oregon Trail travelers, rural dry-land wheat farmers and their families, military service, schools and toys – from horse-power to electricity and engine-power. Interpretation and hands-on activities for students are suitable for grades K-12. Interpretive materials include A Guide to the Oregon Trails in Sherman County, A Tourist’s Guide to Grain Production, and a twice-yearly historical anthology, Sherman County: For the Record with local stories by local authors. Amenities include clean restrooms, The Museum Store, and rotating exhibits featuring local artists. Open daily May through October 10-5 – otherwise by appointment - next to Moro City Park and History Wall.

The Society operates a museum filled with items reflecting Chippewa traditions. These include sculptures created by talented local stone carvers and paintings by both young and old artists. The traditional history collection includes many objects that show the unique culture of the Chippewa, as well as three dioramas, showing the Chippewa transition from the woodlands to the plains, and a recreated Red River ox cart represents the Metis culture also found among the Native regional cultures.

The museums offers exhibits and research library access.