The Mt. Prospect estate was built at the direction of John Wingate Weeks, leading conservationist, U.S. congressman, U.S. senator, and secretary of war under presidents Harding and Coolidge. Set at the very top of Mt. Prospect, the house and grounds provide a 360-degree panorama of mountain splendor, including the Presidential Range of the White Mountains, the Green Mountains of Vermont, the Kilkenny Range, the Percy Peaks, and the upper Connecticut River Valley. The Weeks estate is one of the best preserved of many grand summer homes built in New Hampshire during this period.

The estate offers tours and recreational and educational events.

The Juliette Gordon Low Birthplace preserves the home in which Juliette Gordon Low (1860-1927), founder of the Girl Scouts within the United States, was born. The house itself is an 1818 English Regency townhouse. The home is furnished with family possessions, objects which belonged to Low herself, and artifacts selected to depict period taste.

The site offers period rooms, guided tours, school tours, Scout programs, and nine educational programs for students. Educational programs range from the life of Low to shipping and the cotton industry in Georgia. The website offers photographs and pre-and post-visit activities.

The Seaside Museum & Historical Society chronicles over 2,000 years of Seaside history. The museum contains artifacts dating back to 700 BC. In addition to the local history museum, the society owns and operates the only beach cottage museum in Oregon.

The society offers guided tours of its two museums and special events. The website offers an extensive photo archive, visitor information, a history of Seaside, and a virtual tour of the museum.

The Ida County Historical Society is dedicated to preserving the history of Ida County, IA, from its founding in 1856 through the present day. The society owns and operates two historic structures, the Moorehead House, the home of John Moorehead, the first Ida County Judge, and a one-room schoolhouse.

The society offers guided tours of its two properties. The website offers a brief history of Ida County as well as visitor information.

The Landmark Society of Western New York is dedicated to preserving western New York's rich architectural and historical heritage. The society owns and operates two historic house museums, the Campbell-Whittlesey House and the Stone-Talon House. The society is headquartered in the Hoyt-Potter House in Rochester, New York.

The society offers frequent tours of local historic structures and districts, guided tours of the society's historic homes, presentations on architectural history, and a research library. The website offers information regarding society properties, visitor information, and a calendar of events.

This site memorializes the life and activities in North Dakota of Antoine de Vallombrosa, the Marquis de Mores, who arrived in 1883. Among his enterprises were a beef packing plant; a stagecoach line; a freighting company; refrigerated railway cars; cattle and sheep raising; land ownership; and a new town which he called Medora, in honor of his wife. The Chateau, a 26-room, two-story frame building, was built in 1883 as the summer residence of the Marquis's family. The Chateau is now a historic house museum and contains many of the original furnishings and personal effects of the de Mores family.

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

The Oregon Coast History Center seeks to preserve and share the history of Lincoln County, Oregon and the Central Oregon Coast. To this end, the society operates the Burrows House and Log Cabin. The 1895 Queen Anne-style Burrows House. The house offers exhibits on local history, a law office setting, and a Victorian parlor. The Log Cabin presents Lincoln County history, including maritime history, local bridges, and Native American life. Plans exist to create a maritime history center. Collections include more than 40,000 artifacts dating as far back as 1850. Collection highlights include the charter boat, Kingfisher.

The center offers exhibits, period rooms, district walking tours, educational outreach programs, research library access, oral histories, and research assistance. The log cabin includes a children's hands-on learning area. Reservations are required for group tours.

The Hubbard House Underground Railroad Museum presents information on the Underground Railroad, Civil War, and Americana. The museum is housed within the circa 1841 Hubbard House. The first floor depicts 1840s life in the Connecticut Western Reserve.

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

The Camden County Historical Society seeks to preserve and share the history of Camden County, New Jersey. To this end, the society operates a 20,000 volume library, the circa 1788 Georgian-style Pomona Hall, and a museum. Pomona Hall offers a glimpse of daily life following the Revolutionary War. The museum presents 300 years of area history, including exhibits on weaving, farming, education, blacksmithing, and transportation.

The society offers research library access, a traveling trunk, and school outreach presentations. Pomona Hall offers period rooms, open hearth cooking demonstrations, spinning demonstrations for students, and student tours. The museum offers exhibits, period rooms, and student tours. Payment of a fee is required for non-members to use the research library.

Gaineswood is one of America's finest Greek Revival houses. Exceptional interior spaces have domed ceilings, elaborate plasterwork, and a facing pair of gilt mirrors that endlessly reflect each other. Designed by owner and amateur architect General Nathan Bryan Whitfield, Gaineswood was constructed during 1843–1861. Some of the elaborate work was executed by African-American slaves. The house museum contains many original Whitfield family furnishings and objects. The grounds feature a gazebo, a slave house, and a small building that was most likely a detached kitchen.

The site offers tours and educational programs.