Known historically as "the Gateway to the Dakotas," Fort Abercrombie was the first permanent United States military fort established in what was to become North Dakota. It was also the only post in the area to be besieged by Dakota (Sioux) warriors for more than six weeks during the Dakota Conflict of 1862. During the Dakota Conflict, Minnesota Volunteer soldiers manned the fort when area settlers sought shelter there. The "regular" U.S. Army soldiers had been withdrawn during the Civil War and had been replaced by the Minnesota Volunteer Infantry. The fort was not protected by blockhouses or a palisade during the seige, but these defensive structures were constructed soon afterward. The fort guarded the oxcart trails of the later fur trade era, military supply wagon trains, stagecoach routes, and steamboat traffic on the Red River. It also was a supply base for two major gold-seeking expeditions across Dakota into Montana. Fort Abercrombie served as a hub for several major transportation routes through the northern plains.

The site offers exhibits.

The Onondaga Historical Association Museum and Research Center presents the history of Syracuse and Onondaga County, New York. Museum permanent exhibits cover the Franklin Automobile; historic brewing; pottery manufacturing; the Underground Railroad; and county trades, transportation, architecture, settlement, and immigration. Collections include textiles, artwork, decorative arts, Native American artifacts, toys, and locally made commercial products.

The museum offers exhibits, research center access, research assistance, outreach presentations, and educational programs. Note that both research center usage and research assistance require payment. The website offers featured artifact information, a research library catalog, videos on topics of historical interest, children's activities, and an image database. The society also offers educator workshops.

The Oliver H. Kelley Farm is a living history farm museum with heirloom crops and heritage animal breeds. Costumed interpreters depict life as it would have been between 1850 and 1876. Structures on-site include an Italianate farmhouse, the construction of which began in 1876; a root cellar; a chicken house; a machine shed; a barn; sheep, calf, and pig pens; and a corn crib. Heirloom gardens and a water pump are also accessible. The farm's original owner, Oliver Hudson Kelley (1826-1913), was a scientist-farmer and both founder and secretary of the Order of the Patrons of Husbandry, the Grange, a farmers' rights association later known as the National Grange. Oliver Kelley lived on site between 1850 and 1876.

The farm offers hands-on activities, self-guided tours, guided tours, nature trails, and grade-appropriate educational programs. The website offers historic photographs and a suggested reading list.

From 1819 to 1826, Cahawba served as Alabama's first capital. It was once a thriving antebellum river town, a major distribution point for cotton shipped down the Alabama River to Mobile, a Confederate prison for captured Union soldiers, and a rural community of African-American families. By 1900, however, most of Cahawba's buildings had burned, collapsed, or had been dismantled. A place of picturesque ruins, Cahawba today is an important archaeological site with an extensive descendants' network.

The site offers tours, exhibits, and educational programs.

Susquehanna State Park preserves the history of the Susquehanna River area—from the native Susquehannocks and circa 1622 settlement to modern day. Key sights include an operational 1794 grist mill; a portion of the 1836 Susquehanna and Tidewater Canal; two canal locks; a historic toll house; the 1804 Rock Run House; and the Steppingstone Museum. The Rock Run House was built as the home of John Carter, a partner in the operation of the Rock Run Mill; and today it contains period furnishings. The Steppingstone Museum is furnished to circa-1900 rural style, and demonstrates art and craft skills used between 1880 and 1920.

The site offers grist mill demonstrations, art and craft demonstrations, self-guided walking tours, mansion tours, museum tours, and period rooms.

The 1843 Washburne House was for many years the home of Elihu B. Washburne, United States Congressman from 1853 to 1869. The restored home's first floor interprets an entry hall, parlor, sitting room, library, dining room, and kitchen with adjoining pantries. All are decorated and furnished to depict the lifestyle of a well-to-do midwestern professional. On the second floor are the master bedroom and a second bedroom.

The house offers tours.

The Martin-Boismenue House, a traditional one-story French Creole residence built ca. 1790, is considered one of the oldest surviving residences in Illinois.

The site offers tours.

This site comprises the remains of North Carolina's largest pre-Civil War plantation and one of the South's largest. It once belonged to the Bennehan-Cameron family, whose combined holdings totaled approximately 900 slaves and almost 30,000 acres by 1860. Today, Stagville consists of 71 acres, on three tracts. On this land stand the late 18th-century Bennehan House, four rare slave houses, a pre-Revolutionary War farmer's house, a huge timber framed barn built by skilled slave craftsmen, and the Bennehan Family cemetery.

The site offers tours and occasional recreational and educational events.

The Ellwood House Museum presents the home of barbed wire magnate, Isaac L. Ellwood (1833-1910). Built in 1879, the Victorian mansion still contains its original furnishings. A visitor's center offers a number of exhibits, including a gallery displaying the history of barbed wire.

The museum offers period rooms, exhibits, and one-hour guided tours.

The Old Courthouse Museum presents the history of Washington County, WI. The museum contains a research library, restored circuit courtroom, and two floors of exhibits. The Romanesque Revival structure itself was designed by architect Henry C. Koch, and completed in 1889.

The museum offers traditional and interactive exhibits, a period room, outreach presentations, traveling trunks, and a research library.