Atop the most southerly hill in a chain known as the Seven Sisters, William Hooker Gillette, noted actor, director, and playwright, built this 184-acre estate, the Seventh Sister. The focal point of his effort was a 24-room mansion reminiscent of a medieval castle.

A second website for the site, maintained by the Friends of Gillette Castle, can be found here.

The site offers tours and occasional recreational and educational events.

The Thomas Lee House, located in East Lyme, CT, is one of the oldest wood frame houses in Connecticut in its primitive state. The original structure dates to circa 1660, with additions having been made circa 1700 and circa 1765. The site is located by the Little Boston Schoolhouse (dating to circa 1805 and also open to the public).

The house offers period rooms, exhibits, colonial days for fourth graders, and the possibility of scheduling tours.

The Amherst History Museum, housed in the 1750s Strong House, presents Amherst's history from colonial times to modern day.

The museum offers exhibits; a guided architectural walking tour; a guided tour of the Strong House; educational tours for students; period rooms; and special events, including lectures.

For 94 years, workers at the Ben Schroeder Saddletree Company crafted tens of thousands of wooden frames for saddle makers throughout the United States and Latin America. It was the nation's longest lasting, continually operated, family-owned saddletree company. John Benedict "Ben" Schroeder, a German immigrant, started his business in a small brick workshop in 1878, though it grew to include a woodworking shop, boiler room and engine shed, a sawmill, a blacksmith shop, an assembly room, the family residence, and several outbuildings. After his death, Ben's family kept his dream alive by adding stirrups, hames for horse collars, clothespins, lawn furniture, and even work gloves to their line of saddletrees. The factory closed in 1972 and was left completely intact. Recognized by historians as one of America's premier industrial heritage sites, the Schroeder Saddletree factory has been restored to allow visitors to Madison to tour through this vintage workplace. Belts turn and the original antique woodworking machines spin into action. Sawdust is whisked from machines into the boiler room, where it once fueled the steam boiler that powered the equipment. Saddletree patterns hang, cobweb covered, from the ceiling.

The museum offers tours, demonstrations, and exhibits.

The Liberty Museum & Arts Center Building was first constructed as a hotel in 1894. The Poellman House, as the hotel was known, contained 30 rooms with baths, steam heat, all "sanitary arrangements" and a first class Café and Bowling Alley. The hotel closed in 1936. The Liberty Museum has a dual mission of presenting creative arts as well as programs of local and regional history. Themes which have been previously covered include Catskills resorts, Main Street, and the history of Route 17.

The museum and art center offer exhibits, art classes, lectures, cultural programs, and programs designed for children.

Meadow Brook Hall is the fourth largest historic house museum in the United States. Built between 1926 and 1929 as the residence of Matilda Dodge Wilson (widow of auto pioneer John Dodge) and her second husband, lumber broker Alfred G. Wilson, the 110–room, 88,000–square–foot mansion is complete with vast collections of original art and furnishings. The exterior and most of the interior rooms at Meadow Brook Hall were designed in the Tudor-revival style. However, a few rooms were decorated in other period-revival styles: the dining room and Matilda’s study are 18th–century Neoclassical, Matilda’s room and the French bedroom are 18th–century French Rococo, and Frances’ bedroom is American Colonial. The hall's collections include original paintings, sculptures, prints and drawings, furniture, ceramics, carpets, glass, silver, costumes and other textiles, and family archival materials. Highlights of the collection include Tiffany art glass, costumes by Paul Poiret, Stickley furniture, paintings by Sir Joshua Reynolds, Sèvres and Meissen porcelain, and Rookwood pottery.

The hall offers guided mansion and garden tours, period rooms, educational programs, and a variety of special events, including lectures.

The Wayne County Historical Society seeks to heighten awareness of and to preserve the history of Wayne County, New York. The society operates the Museum of Wayne County History, which currently has over 8,000 items in its collection, spanning a wide range of time.

The society offers a quarterly newsletter specifically written for educators, a historic map club, a series of pen-pal letters written by a fictional child from the past, educational kits for rental, in-classroom presentations by costumed docents, and guided tours.

Preservation Burlington is a preservation advocacy and education organization which seeks to protect and share the history of Burlington, Vermont.

The organization offers downtown, waterfront, and Old North End historic walking tours scheduled upon request and a weekly preservation television program.

The Santa Barbara Trust for Historic Preservation preserves and interprets historic sites in Santa Barbara County, California. The trust was involved in the reconstruction of El Presidio de Santa Bárbara State Historic Park and the Casa de la Guerra, and operates the Santa Inés Mission Mills in Solvang, California. These are 2 grist and fulling mills dating to the 1820's. The trust's collections date from the 18th century to the 20th century.

The mission mills are not currently open to the public, as they are in transition to being incorporated in a state park. However, tours can possibly be arranged by calling the trust. An introductory film (which is also available for rental), exhibits, educational programming for elementary school students, guided tours designed for specific grade levels, living history demonstrations, craft events, lectures, summer camp, and high school elective courses are available at El Presidio de Santa Bárbara State Historic Park and/or the the Casa de la Guerra. The trust offers a research center.

The Tampico Area Historical Society seeks to preserve and share historical, genealogical, and local information on the Tampico, Yorktown, Thomas, Hume, and Deer Grove areas of Illinois. Tampico is the birthplace of Ronald Reagan (1911–2004), 40th President of the United States, and Admiral Jospeph M. Reeves (1872–1948), known as the "Father of Carrier Aviation." The unaffiliated birthplace of Ronald Reagan is within walking distance of the society headquarters.

The website offers a digital newsletter, transcriptions of newspaper articles, obituaries, information on historical marriages, family histories, census data, and photo galleries.