The Hermitage Museum and Gardens consists of an early 20th century historic house museum with a worldwide art collection and contemporary exhibition galleries, surrounded by twelve acres of formal gardens and natural woodlands, educational wetlands, a Visual Arts School, and a Studio Artists Program.

The Foundation offers a variety of tours and special programs which can be catered to schoolchildren, individuals, or adult group tours. The Foundation also offers periodic special events, including special art exhibits and presentations. The website offers visitor information, a history of the site, and an events calendar.

This small country estate in Portsmouth was purchased in 1877 by Thomas E. Brayton (1844–1939), Treasurer of the Union Cotton Manufacturing Company in Fall River, Massachusetts. It consisted of seven acres of land, a white clapboard summer residence, farm outbuildings, a pasture, and a vegetable garden. Gardener Joseph Carreiro, superintendent of the property from 1905 to 1945, and his son-in-law, George Mendonca, superintendent until 1985, were responsible for creating the topiaries. There are 80 pieces of topiary throughout the gardens, including 21 animals and birds in addition to geometric figures and ornamental designs, sculpted from California privet, yew, and English boxwood. Green Animals is the oldest and most northern topiary garden in the United States. Mr. Brayton's daughter Alice gave the estate its name because of the profusion of "green animals." She made the estate her permanent residence in 1939. Upon her death in 1972, at the age of 94, Miss Brayton left Green Animals to The Preservation Society of Newport County. Today, Green Animals remains as a rare example of a self-sufficient estate combining formal topiaries, vegetable and herb gardens, orchards, and a Victorian house overlooking Narragansett Bay.

The site offers tours.

The Pruyn House is a circa 1830 Greek Revival and Federal-style home, in which Casparus Pruyn and his family lived. Pruyn was both a businessman, with strong ties to Dutch interests, and farmer. In addition to the home, the grounds offer a smokehouse, potting shed, reconstructed barn, 1910 schoolhouse, well house, woodshed and privy, and gardens.

The house offers period rooms and gardens.

Bartow-Pell Mansion Museum is a 9-acre public site nestled in a quiet area of the Pelham Bay Park. The gardens, mansion, and carriage house represent a type of elegant country living that existed in the Pelham Bay region during the mid-19th century. Using the Museum's historic collections and structures as references, visitors explore the social history of the people who lived and worked on the estate during the decades surrounding the Civil War.

The house offers tours, lectures, demonstrations, educational programs and other classes and workshops, and recreational and educational events.

Located in the heart of the Napa Valley wine country, the Park offers camping, picnicking, swimming, and hiking trails that go through stands of coastal redwoods as well as forests of Douglas-fir, tanoak, and madrone. Next to the park's visitor center is the Native American Garden which displays some of the plants important to the first people of this area. Today, many of the same plants are used by the Wappo people. A guide for the garden is available by mail or in the visitor center to broaden one's understanding of the first people. Near the day use/picnic area is the Pioneer Cemetery, resting-place of some of the original settlers of the Napa Valley. The cemetery is currently under restoration to return it to its original, mid-1800s appearance.

The site offers exhibits and occasional recreational and educational programs.

Francis Thelaball II built this house with its massive chimneys in 1725. Typical of early colonial planters' homes, the Lynnhaven House features a hall-parlor plan with molded ceiling joists and a closed string Jacobean-type stair. Furnishings reflect the early 18th century. Costumed docents conduct tours of the House and grounds as guests arrive. On the grounds are gardens and a small Revolutionary War graveyard.

The house offers short films, tours, exhibits, and recreational and educational events.

The historic Lyman Estate Greenhouses, dating back to 1804, are among the oldest examples still in existence in the United States.

The greenhouses offer tours.

Skylands Manor, with its English Jacobean architecture common in the English countryside 400 years ago, was designed by John Russell Pope for Clarence McKensie Lewis, a stockbrocker and civil engineer. Built in the 1920s, it is constructed of native stone and half-timbers. The weathered stone facade of this 44-room mansion blends into the landscape. The mansion contains rooms with antique paneling as well as new American Oak paneling and large windows, some of which contain 16th-century stained glass medallions. Moulded plaster ceilings and an elaborately carved staircase add the finishing touches to this impressive country house. Ringwood Manor, which was home for a succession of well-known ironmasters for nearly 200 years, sits comfortably on a low hill. Iron production in this area began in the 1740s. In the mid-19 century, Ringwood Manor was owned by Abram S. Hewitt, America's foremost ironmaster. Dedicated in 1984, the State Botanical Garden is the culmination of two eras of landscape architecture under the direction of Francis Lynde Stetson, owner of Skylands from 1891—1922. The garden contains an extensive variety of plants, including evergreens and deciduous trees and shrubs in specialty areas.

A second website specifically for Ringwood can be found here.

A second website specifically for Skylands and the State Botanical Garden can be found here.

The sites offer tours and occasional recreational and educational events (including living history events).

The Kennebunkport Historical Society seeks to preserve and share the history of Kennebunkport, Maine. To this end, the society operates the Nott House and the Kennebunkport History Center. The Nott House is a Greek Revival historic home museum which primarily interprets Victorian life in the busy maritime center of Kennebunkport, Maine. However, the carpet, wallpaper, furniture, and other artifacts are all original to the home; and, as such, the site displays styles ranging from those of the late 18th century to circa 1950. The grounds hold the restored gardens. The Kennebunkport History Center consists of the Pasco Exhibit Center, which presents local history exhibits; Town House School, holding the society research center; Clark's Shipwright Office, covering Kennebunkport's maritime history; Old Jail Cells; and Benson Blacksmith Shop.

The Nott House offers period rooms, guided tours, and gardens. The Kennebunkport History Center offers exhibits, library access, research assistance, demonstrations, and activities. The society offers one-hour guided architectural walking tours and self-guided walking tours. Payment of an hourly fee is required to use the library. Reservations are appreciated for group visits to the Nott House and the Kennebunkport History Center. The jail cells and shipwright office are only open by appointment.