Bryant Cottage was built in 1856 by Francis E. Bryant (1818–1889), a friend and political ally of Senator Stephen A. Douglas. According to Bryant family tradition, on the evening of July 29, 1858, Douglas and Abraham Lincoln conferred in the parlor of this house to plan the famous Lincoln-Douglas Debates. The one-story, four-room wood frame cottage has been restored and is interpreted as an example of middle-class life in mid-19th-century Illinois. The furniture on display is of the Renaissance Revival style, appropriate for a small-town family of the mid-19th century.

The site offers tours and occasional recreational and educational events.

The half-acre Casa Navarro State Historic Site preserves the restored home of Tejano patriot José Antonio Navarro (1795–1871). Today, visitors can tour Navarro's adobe home furnished with period antiques, read copies of his writing, and discuss questions of history with informed interpreters. Casa Navarro is the only historic site in San Antonio dedicated to the interpretation of the Mexican history and heritage of Texas, as seen through the life of Navarro, a prominent San Antonio merchant, rancher, and statesman. According to the site, "Navarro served as a member of the Texas legislatures under Mexico, the Republic of Texas, and the State of Texas. Representing San Antonio Tejanos, he signed the Texas Declaration of Independence in 1836. Navarro was the first Tejano to write about the history of Texas. He was an influential political figure during the momentous 55 years when the destiny of Texas was forged, from 1810 to 1865. Navarro is best known as 'the strongest defender of the rights of his people.'"

The site offers period rooms, tours, copies of Navarro's writings, and on-site docents.

The Whaley House Museum is an 1857 century Greek Revival residence, theater, county courthouse, and general store. The building's owner, Thomas Whaley, had originally traveled from New York to California with the Gold Rush before setting up operation of joint venture general store. The execution of Yankee Jim Robinson, who attempted grand larceny, took place on the grounds in 1852. The site interpretation targets 1868 to 1871.

The museum offers orientation presentations with question and answer sessions, self-guided tours, guided tours, ghost tours, and docents to address questions. Reservations are required for group and guided tours. The site is partially wheelchair accessible. The website offers transcriptions of historical documentation.

Two centuries ago, the White River was the highway to the American frontier of north Arkansas. Through exhibits and programs, Prairie County Museum tells the story of the exploration and settlement of the lower White River from 1831 to 1931.

The site offers exhibits, research library access, and workshops.

The Jacobsburg Historical Society preserves and interprets the historical Henry family estate, early industrial properties, and the family's gun and iron making heritage. Henrys not only produced firearms for all U.S. major conflicts from the Revolutionary War through the Civil War, but they were also the primary suppliers of rifles for the largest American business enterprise of the early 19th century, John Jacob Astor's American Fur Company. The Henry firearm became the most prominent weapon of the western frontier due to its durability, accuracy, and relatively low cost. The society operates the Pennsylvania Long Rifle Museum; the 1832 John Joseph Henry House; and the Nicholas Hawk Gun Shop, a reconstruction of an 1802 structure.

The society offers visitor center exhibits, a historic house museum, living history encampments, school programs, a monthly community lecture series, a youth history day camp, a number of publications, and early American gunsmithing courses.

The Foundation maintains two historic houses, the Nathaniel Russell House and the Aiken-Rhett House. Set amid spacious formal gardens, the 1808 Nathaniel Russell House is widely recognized as one of America's most important neoclassical dwellings. The house is furnished with period antiques and works of art that evoke the gracious lifestyle of the city's merchant elite. Today the Nathaniel Russell House interprets the lives of the Russell family, as well as the African-American slaves and artisans who were responsible for maintaining one of the South's grandest antebellum townhouses. The Aiken-Rhett House stands alone as the most intact townhouse complex showcasing urban life in antebellum Charleston. Built in 1818 and greatly expanded by Governor and Mrs. William Aiken, Jr. in the 1830s and 1850s, the house has survived virtually unaltered since 1858.

The foundation offers occasional recreational and educational events; the Nathaniel Russell House offers tours; the Aiken-Rhett House offers tours.

The Benicia Fire Museum houses historic fire service equipment and hundreds of related items from the Benecia Volunteer Firemen Incorporated, the oldest continuous volunteer fire service in California (dating to 1847). Fire equipment from the former Benicia Arsenal Military Reservation in also on display. Collection highlights include a 1920's Phoenix engine, a circa 1855 Solano engine, an 1833 Griffin pumper, a replica of the first hand pumper, a circa 1932 Dodge, and the only open cab four wheel drive fire engine west of the Mississippi.

The museum offers exhibits.

The Sherman Historical Society seeks to preserve and share the history of Sherman, Connecticut, founded in 1802. To this end, the society operates two museums. The 1829 Federal-style Northrop House presents exhibits of local historical interest, while the circa 1810 Old Store presents both local history and the contents of a general store circa 1867.

The Northrop House Museum and The Old Store offer exhibits. The Old Store also offers period rooms.

The Slave Relic Museum presents the history of the U.S. African American population via artifacts made and used by slaves between 1750 and the mid-19th century.

The museum offers exhibits. The website offers audio interviews; a video tour of slave dwelling ruins in the Bahamas; and several primary source documents, including 63 pages of documents relating to the Amistad and William E. Channing's "The Duty of the Free States."

The Vandalia State House, the fourth Illinois statehouse, served as the capitol from 1836 until 1839 and is the oldest surviving capitol building in the state. The first floor contains a large entry hall and rooms representing the offices of the Auditor, Treasurer, and Secretary of State, as well as the Supreme Court chamber. The second floor is composed of a central hall and recreated House and Senate chambers, each of which contains a visitor gallery reached by staircases.

The site offers an exhibit, tours, and occasional recreational and educational events.