The Blackwells Mills Canal House was built circa 1835 as a home for the men and women who operated the swinging bridges over the canal. In the 1970s, the last owner of the home died and the canal was declared a National Historic Site. Now, the house is a historic house museum, and visitors to the home can view how bridge operators lived in the 1800s as well as view artifacts and historical information about the Blackwells Mills Canal.

The site offers historical and visitor information regarding the house.

Across Newport Harbor stands the largest coastal fortification in the United States. Visitors to this engineering and architectural masterpiece can see where the soldiers lived, enter the casemates, explore the tunnel system, and climb the bastions for breathtaking views. From 1824 to 1950, Fort Adams housed generations of our soldiers, today it still stands ready for exploration.

The site offers exhibits, tours, and occasional recreational and educational events (including living history events).

The Historical Society of Berks County is dedicated to preserving the history of Berks County, PA, and does so through the collection and promotion of local historical resources and artifacts. The society maintains both a historical museum and library, which are both open to the public. The museum features three floors of exhibits space, and the library contains census records, tax records, family histories and other association materials. The society is also currently renovating the Hendel House.

The site offers information regarding library resources, visitor information for the museum, an events calendar, and 12 photo galleries.

"The goal of the Livermore Heritage Guild is expressed by its motto, 'Help save yesterday for tomorrow.' The Guild is an information source for those who are interested in the history of Livermore and houses its collection in the historic Carnegie Library Building in downtown Livermore." The guild also runs the Duarte Garage Museum, a 1915 automotive garage, and the 1911 Carnegie Museum, originally built as a public library and now serving as the guild's headquarters.

The site features a slideshow of downtown Livermore, an events calendar, recent news, and an online museum store.

The Katahdin Iron Works is located in rural Maine and was the state's only iron works installation. The iron works operated between 1843 and 1890, and today stands as a monument to the industrial age in Maine. Visitors can view the carefully preserved iron furnaces and buildings, which were restored in 1966. In addition to the Iron Works, the state historic site also offers many options for outdoor activity, including hiking and camping.

The site offers brief historical information and visitor information.

Our mission is to interpret, preserve, collect and make available evidence of the past and to further understand and appreciate the prehistory and history of the four River Valleys. The Four River Valleys are the Beaver, Black, Indian and Deer River Valleys. The historical society has published numerous articles as well as several books, all of which are available for purchase on the website. In addition, the society has recently acquired the Hiram Hubbard House, which is currently undergoing renovations and will serve as the society's headquarters and resource center. A heritage room, documenting the history of the congregation, is located within the 1915 Woolworth Memorial United Methodist Church.

The site offers information on tours put on by the society, books for sale, and a collection of historical articles.

The Deepwood Estate had its beginning in the late 19th century when Dr. Luke A. Port bought several acres of land in Salem, Oregon. The Port family hired William Knighton to design their home, which was acquired by the city of Salem in 1971. Today, the historic home and its associated gardens are open to visitors and serves as a historic house museums. The Estate organization also puts out a quarterly newsletter with news about the estate.

The site offers visitor information, histories of the estate and its gardens, and an events calendar.

The Chapman Historical Museum is "located near downtown Glens Falls, a small city at the southeastern edge of the Adirondack Mountains, an hour north of Albany, New York. Today the museum consists of the restored Victorian home of the DeLong family, a changing exhibition gallery, research archive and gift shop." The museum also provides a wealth of educational programs tailored for children of different ages and is working on a Glens Falls historical site.

The site offers information on current exhibits, a form for prospective researchers, an online gift shop, and visitor information.

"In 1800, Charles Carroll of Carrollton, a signer of the Declaration of Independence, offered his son a generous wedding gift — $10,000 to build and furnish a place in the country. Charles Carroll Jr. spared no expense and overlooked no detail in the construction of Homewood, an expression of his family's tremendous political, social, and financial stature. Visit today and experience the beauty and elegance of Homewood Museum — one of the nation's best examples of Federal Period architecture and a National Historic Landmark. Homewood Museum offers individual and group tours and a year-round calendar of changing exhibitions, concerts, and educational programs."

The site offers visitor information, an online museum shop, a history of the home, a virtual tour, an online audio tour, and an events calendar.

The Indian King Tavern, built circa 1750 by a wealthy Philadelphia merchant and ship owner named Matthias Aspden, is a fine example of an early American public house and tavern. The tavern was originally built as a three-and-one-half story brick building. By 1764, it had been enlarged to 24 rooms with five cellars. On its north elevation, a two-story addition was constructed. Commonly referred to as "the ark," this part of the building was used in connection with tavern operations. Thomas Redman purchased the property in 1775. Redman, a Quaker, quickly raised the ire of local patriots with his outspoken pacifism. In January 1777, he was arrested and jailed for his frequent public pacifist readings. Shortly after his release from prison in May of that same year, he sold the tavern to Hugh Creighton. Creighton continued to operate the premises as a tavern and inn, retaining Thomas Smith, the innkeeper for previous owner Thomas Redman. Before long, Smith and the tavern's new owner found themselves at the center of political events that would forever change the course of history for the colony of New Jersey and the nation.

The museum offers tours.