The Foundation is a private, nonprofit organization whose mission is preserving, protecting, and enhancing the special historic character of Salisbury and Rowan County through education, neighborhood revitalization, advocacy, and the preservation of historic landmarks. It also maintains and operates the Josephus W. Hall House, the Salisbury Station and the Grimes Mill. The 1820 Hall House contains the silver, china, and furniture of the Hall family, which owned the house beginning in 1859; the 1908 Salisbury Station has been restored and is tourable by appointment; and the 1896 Victorian roller mill, Grimes Mill, contains five floors of early mill machinery, and is tourable by appointment.

The foundation offers tours and occasional recreational and educational programs; the historic sites offer tours.

Built in 1899, Oakland's Dunsmuir Historic Estate features a 37-room Neoclassical Revival mansion set upon 50 acres of landscaped grounds. The estate also includes a carriage house and a pavilion overlooking a pond and a gazebo, and plays host to a variety of educational, cultural, entertainment events throughout the year.

The house offers tours and educational and recreational events, including occasional living history events.

Built in 1760, the Wentworth-Gardner house is a fine example of the American Georgian style. The Lear House was built circa 1740 and is an example of the Georgian architectural style; the house is actually one of the most modest of Portsmouth's historic house museums and gives tourists a view of how the middle-to-upper-middle classes lived.

The houses offer tours.

Founded in 1966, the Society provides visitors with a doorway to the past from its Regional History Center in historic Bethel Hill Village. The Society's Broad Street properties, the 1821 O’Neil Robinson House and the 1813 Dr. Moses Mason House, are both listed in the National Register of Historic Places. Open year-round, the Bethel Historical Society's Regional History Center offers more than a dozen period rooms and exhibit galleries where visitors can discover and explore the area's varied past. The Society's museum and library collections include a wide range of materials documenting the heritage of northern New England, with a major focus on western Maine and the White Mountain region of Maine and New Hampshire. Throughout the year, the Society provides lectures, courses, special exhibits, craft demonstrations, and educational activities for both members and the general public. The Robinson and Mason Houses also offer exhibits and tours.

The society offers research library access, lectures, and educational and recreational programs; the houses offer exhibits and tours.

The Society maintains the 1861 Brunk House and a museum displaying exhibits on local history. Visitors to the Museum can explore a unique composite of 21 historic maps that locate the nearly 600 claims of the Donation Land Act in Polk County; learn more about the Kalapuya tribe that occupied Polk County; and enjoy exhibits of agriculture, logging, and the 28 townsites that were in Polk County at one time. Visitors to the Brunk House can see what life was like on an 1861 farmstead.

The society offers lectures and research library access; the museum offers exhibits; the Brunk House offers tours.

The mission of the Center is to interpret the East Bay in the later 19th century. The Center seeks to accomplish this goal by promoting the study of material culture of the era and the social and economic life of Oakland, the East Bay, and the San Francisco Bay Area as represented by the Cohen Bray House. The uniqueness of this house is that it is still lived in by members of the original family. With the help of the friends and the professionals on the board, they have made the effort to preserve and protect the original interiors. Visitors will find the furniture; wallpaper; pictures; rugs; and personal items such as diaries, shopping lists and wedding presents are still in their places. Tours also include family stories of the neighborhood and what life was like since the house was built in 1884.

The house offers tours and educational programs.

The Old York Historical Society, as the Museums of Old York, was founded more than 100 years ago to preserve the history and artifacts of York, Maine. Originally referred to as Gorgeana, York is one of New England's earliest colonial settlements. It also has the distinction of being the nation's first chartered city (1641) and first incorporated city (1642). Offering 37 period room settings and several galleries housed throughout nine historic museum buildings, the Museums of Old York showcases a wealth of early New England art, architecture, and decorative arts. The exhibits focus on the stories of southern Maine's men, women, and children and the world they created and lived in from the earliest settlement in the 1600s to the present day. Historic structures include the 1834 Remick Barn, the 1750 Jefferds' Tavern, the 1745 Old Schoolhouse, the 1742 Emerson-Wilcox House, the 1719 Old Gaol, the 1747 Ramsdell House, the 1740s John Hancock Wharf, the 1867 George Marshall Store, and the 1730 Elizabeth Perkins House.

The museums offer exhibits, tours, living history demonstrations, classes, and other educational and recreational events.

Located on a 66-acre estate on Sarasota Bay, the John and Mable Ringling Museum of Art was established in 1927 as the legacy of John Ringling (1866–1936) and his wife, Mable (1875–1929). Recognized as the official State Art Museum of Florida, the Museum of Art offers 21 galleries of European paintings as well as Cypriot antiquities, Asian art, American paintings, and contemporary art. The Ulla R. and Arthur F. Searing Wing hosts a variety of traveling exhibitions throughout the year. The estate features the spectacular Cà d'Zan ("House of John"), a waterfront mansion that was restored in 2002. The Circus Museums, including the Tibbals Learning Center, display the world's largest miniature circus, costumes, wagons, performance equipment, and other artifacts chronicling the history of the Circus. The estate also features Mable Ringling's Rose Garden, completed in 1913, and beautifully landscaped grounds overlooking Sarasota Bay.

The museums offer exhibits and tours; the Ca d'Zan offers tours; the museum complex as a whole offers performances, lectures, film screenings, educational programs, research library access, educational and recreational events.

The Society was founded September 5, 1964, as an outgrowth of the Lompoc Pioneer Society. The mission of the society is to provide a repository for historical artifacts and documents pertinent to the history of the Lompoc Valley. The Society also owns and maintains the 1875 Fabing-McKay Spanne House.

The house offers tours; the society offers research library access.

The Society operates a museum, housed in the Bradley House—an early-20th-century, seven-bedroom, two-story, single-family bungalow built in 1914. This house was the home of the president of Michigan Limestone and Chemical Company, the largest industry in this community. The museum features three floors of exhibits, including the Bradley dining room, a Victorian music room, a 1900s bedroom, the Bertram sisters' millinery shop, and a county store. Other exhibits include a school room from the early 1900s, farm implements, household goods, woodworking and lumbering tools, and a maritime room.

The museum offers exhibits, tours, and occasional educational and recreational programs.