The Humboldt County Historical Society seeks to preserve and share the history of Humboldt County, California. The society is housed in the Gross-Wells-Barnum House, a 1902 Colonial Revival structure. Much of the lower floor is open to the public.

The society offers lectures, essay contests, a newsletter, a research library, and archives. The website offers newspaper articles on historic topics.

The Hose No. 5 Fire Museum presents firefighting history via artifacts. Collection highlights include a 1930 McCann pumper, a 1946 Jeep Willys outfitted for fighting forest fires, and a 1917 Garford pumper—one of three Garford fire engines still in existence. The museum is housed in a 1897 fire station. The station remained in use for nearly a century.

The museum offers exhibits.

The Buffalo Gap Historic Village preserves and presents the history and heritage of the last 50 years of the Texas frontier (1875–1925). The living history village contains at least 12 original building; a museum; collections of arrowheads, frontier weapons, and medical instruments; and two Model T hacks.

The village offers exhibits, lectures, audio wand tours, a school day utilizing 1925 curriculum, a curriculum guide, and vintage baseball.

Hillwood Estate, Museum & Gardens consists of a historic home and surrounding gardens. The Georgian mansion was originally designed in 1926; and was purchased by Marjorie Merriweather Post, heir to the Post cereal fortune, in 1955. The extensive gardens reflect a variety of influences and include a Japanese garden, one of the last remaining examples of the type of oriental gardens influenced by the reintroduction of the Japanese culture to America during the 1950s. Today the estate has one of the most comprehensive collections of eighteenth and nineteenth-century Russian Imperial art outside of Russia, as well as an extensive collection of eighteenth-century French decorative arts. Highlights include a diamond crown worn by Empress Alexandra at her marriage to Nicholas II; Beauvais tapestries designed by François Boucher; two Imperial Easter eggs by Carl Fabergé; La Nuit by William-Adolphe Bouguereau; and a collection of costumes and accessories worn by Mrs. Post or her family. Many artifacts can be viewed in the mansion.

The estate offers an introductory film; period rooms; exhibits; Acoustiguide tours for the home, gardens, Russian collection, and French collection, as well as a tour designed for children; guided tours of the mansion and gardens; self-guided written tours; custom tours; sign language, oral, or cued speech interpreters—with advance notice; Braille information guides; a resource area; and a non-circulating art research library. The website offers digital access to the collections.

The Garibaldi Museum presents information concerning Captain Robert Gray; his historical vessels, the Lady Washington and the Columbia Rediviva; trade with the Native Americans of the Pacific Northwest; and the maritime world of the 1700's. Gray discovered the Columbia River on May 11, 1792. During James Madison's second term as President (1813–1817), the U.S. used this discovery to lay claim to the Oregon Country. Among the museum displays are models of the Columbia Rediviva and Lady Washington; an 8–foot–tall reproduction of the Columbia Rediviva's figurehead; a half model of the same vessel, showing how the ship was provisioned for the long voyage; reproduction seafarers' garb; and musical instruments. One wing of the museum is devoted to the history of the City of Garibaldi, displaying pictures and artifacts from the turn of the century.

The museum offers exhibits, several of which are interactive; scholarships for local high school seniors and Tillamook Bay Community College students; and a 4th grade education program.

Prescott Farm presents Revolutionary War era rural life in Aquidneck Island, Rhode Island. The site consists of public access areas, as well as several historic structures rented to tenant stewards. Historically, General Richard Prescott, commander of the 4,000-strong British occupying force on Aquidneck Island, took the house owned by Loyalist John Overing (the circa 1730 Nichols-Overing House) as his rural headquarters. On July 10, 1777, American Colonel William Barton, under cover of darkness, led a party of 30 or more men in longboats to the farm, where they absconded with Prescott and his aid. Structures on site include the 1812 Robert Sherman Windmill; the Hicks House, built circa 1715 and now called The Country Store; the mid–1700's guard house; and the Sweet-Anthony House, built circa 1730. Prescott Farm’s kitchen and herb gardens are living laboratories that showcase period horticulture as well as contemporary gardening practices. The plant varieties grown in the gardens represent what many Aquidneck Islanders may have used for food, medicine and other utilitarian purposes in the colonial era.

The farm offers exhibits, guided tours, and educational programming.

The Blair County Historical Society seeks to preserve and share the history of Blair County, Pennsylvania. The society operates a museum with period rooms and exhibits on the early iron industry, transportation, medicine, military history, toys, geology, and education. The museum is housed in the Baker Mansion. This home was occupied by iron master Elias Baker and his family beginning circa 1836. Other sites operated by the society include the Royer Mansion, previously owned by another iron master; the Dick Schoolhouse; and Etna Furnace. The Blair County Historical Society holds a collection approaching 100,000 artifacts. The major period covered is 1850 through the 1920's. The collection includes a wide variety of items depicting everyday life, including clothing and accessories, furniture, household appliances, toys, china, ceramics and glassware, lighting devices, and tools. Other categories include firearms and military relics, medical tools and equipment, transportation artifacts, rocks and minerals, and material from local schools and businesses.

The society offers a traveling trunk focused on mid–19th–century daily life; Royer Mansion tours; Baker Mansion tours; a museum exhibits; research library; and archives.

Agecroft Hall is a Tudor–style mansion built in Lancashire, England in the late 15th century. The mansion was relocated to Virginia circa 1925. The structure is furnished with authentic artifacts dating from 1485 to 1660, including a rare 17th–century painted wood bedstead. The site also includes a garden based on period (late Tudor and Stuart) English gardens.

The hall offers period rooms and several educational programs designed to meet state education standards.

The Portland Museum shares the history of Portland, a riverside community in Louisville, Kentucky, and its history as an independent town. Portland was home to Captain Mary Millicent Miller, the first woman licensed as a steamboat master in the United States. Collections include costumes, artwork, photographs, documents, oral histories, and vernacular objects.

The museum offers exhibits, an automated sound track, films, hands-on antique letterpress equipment, walking tours, games, readers and classroom materials for purchase, and educational materials in accordance with Kentucky educational standards. The website offers information on education transportation grants.

Fort Buford State Historic Site preserves remnants of a vital frontier plains military post. Fort Buford was built in 1866 near the confluence of the Missouri and Yellowstone Rivers, and became a major supply depot for military field operations. Original features still existing on the site include a stone powder magazine, the post cemetery site, and a large officers' quarters building which now houses a museum. Fort Buford, located near present-day Williston, was one of a number of military posts established to protect overland and river routes used by immigrants settling the West. While it served an essential role as the sentinel on the northern plains for 19 years, it is probably best remembered as the place where the famous Hunkpapa Sioux leader, Sitting Bull, surrendered in 1881.

The site offers a short film, tours, exhibits, and occasional recreational and educational events.