Centenary State Historic Site commemorates Centenary College, an all-male college (circa 1839-1908) which was previously located on today's historic site. With the college closed during the Civil War, both the Union and Confederate forces made use of the school structures for hospitals and/or area headquarters. The structures which remain on-site were the West Wing and the residence of a professor.

The site offers period rooms, tours, educational programs, and picnic facilities.

This antebellum mansion was home to Major Robert Gamble and headquarters of an extensive sugar plantation. It is the only surviving plantation house in South Florida. It is believed that Confederate Secretary of State, Judah P. Benjamin, took refuge here after the fall of the Confederacy, until his safe passage to England could be secured. Today, the mansion is furnished in the style of a successful mid-19th-century plantation.

The park offers tours.

The Historical Society of Talbot County seeks to preserve and share the history of Talbot County, Maryland. To this end, the society operates a museum and three historic residences. The residences are the circa 1795 cottage of cabinetmaker Jospeh Neall, the 1805-1810 Federal-style townhouse of Joseph's brother James, and a partial reconstruction of an early homestead. The townhouse contains period furnishings. The society collections include more than 10,000 artifacts, archives, and at least 100,000 photographs. Roughly 15 percent of the artifact collection is on view at any given time. Collection highlights include the sign of a local suffrage group, local packing labels, illustrated journals by Quaker William E. Bartlett (1793-1865), and a lithograph by artist Ruth Starr Rose (1887-1965).

The society offers exhibits, historic home tours, a self-guided tour of Easton's downtown, a self-guided driving tour of Frederick Douglass' life in the area, gardens, and period rooms. Reservations are required for group tours.

The House of Seven Gables was built in 1668, making it the oldest wooden mansion remaining in New England. Best known for being immortalized in Nathaniel Hawthornes' novel The House of the Seven Gables, today the home holds more than 2,000 artifacts and a research library. A number of other properties have been moved to the site. These are the 1655 Jacobian and Post-Medieval-style Retire Beckett House, the oldest residence in Massachusetts; the 1682 Hoope-Hathaway House (of the same styles as the previous structure); the 1750 Georgian-style Nathaniel Hawthorne House, birthplace of famed dark romanticist author Nathaniel Hawthorne (1804-1864); and the circa 1830 counting house, where a maritime supercargo would have calculated his finances. The grounds also contain gardens.

The site offers tours of the House of the Seven Gables, period rooms, exhibits, hands-on activities, summer camps, educational programs on navigation and daily life in the 1600s Massachusetts Bay area, and an outreach program on colonial trade. The website offers a lesson plan on the Progressive Era (1890s-1920s). Reservations are required for educational programs.

Connecticut's Old State House was built prior to the revolutionary war and served as the state's first capitol from 1797 to 1873. The building has been carefully restored and now is host to a museum of Connecticut state and legislative history.

The Old State House offers audio tours, guided group tours, educational activities, special events, and exhibits on Hartford and Connecticut history. The website offers visitor information and information regarding upcoming events.

The Willamette Mission State Park commemorates the location of the first mission created for Native Americans, founded 1834 by Reverend Jason Lee. The Wheatland Ferry, which carried the first covered wagon across the Willamette River in 1844, also has a landing in the park.

The park offers a monument, ghost structures (framed outlines) indicating the original buildings, and interpretive signage.

The Royal Mausoleum State Monument is the burial place of royalty of Hawaii's Kamehameha and Kalakaua Dynasties (1810-1872 and 1874-1893 respectively) and their retainers. The Kamehameha Dynasty is known for unifying the islands, creating a constitutional form of government, and granting all Hawaiians religious freedom. The Kalakaua Dynasty saw the end of the Hawaiian monarchy.

The site offers guided tours. Reservations are required for said tours.

The Society operates the Baldwin Reynolds House Museum. Built in 1843 and listed on the National Register of Historic Places, the house now displays artifacts from the Baldwin and Reynolds families, as well as other Crawford-area families; 23 rooms are on display, some outfitted to reflect their original use and others used for historical displays.

The society offers research library access and educational and recreational events; the museum offers exhibits and tours.

Marietta, the Federal style brick home of Gabriel Duvall, an Associate Justice of the U.S. Supreme Court, is listed on the National Register of Historic Places. Built circa 1813, Marietta remained under ownership of the Duvall family until 1902. Justice Duvall's law office and root cellar still remain today. Marietta is situated on 25 acres of lawn and wooded areas and the grounds boast two County Champion trees and lovely old boxwood. Marietta operates as an historic house museum and is furnished and interpreted to reflect the three generations of Duvall's that occupied the house. The Society of Mareen Duvall Descendants has relocated the family graveyard from its original location to the serene surroundings at Marietta.

The house offers tours, educational programs, workshops, and occasional educational and recreational events.

The Oregon-California Trails Association seeks to preserve and heighten awareness of the history of emigrant trails and the people who made use of them.

The association website offers a virtual trail tour, historical information on a variety of topics pertinent to life on the trails, emigrant profiles, and information on locations and grave sites along the trail.