The Society operates the Northfield School Museum, dedicated to preserving the history of the old Northfield Middle School building. This building opened its doors in 1911 as the Northfield Central High School. With the construction of the new middle school the last classes were held in the old school in 2004.

The society offers research library access and occasional educational and recreational events; the museum offers exhibits.

Completed in 1851, this National Historic Landmark is a museum of state history and politics. Additions to the building were made several times. The Confederacy began in the original Senate chamber and the Selma to Montgomery 1965 Voting Rights March ended on the street in front of the building. Today, the governor and other executive branch officers still occupy offices in the Capitol.

The site offers exhibits and tours.

Although not open to the public, visitors are welcome to view the house from the outside as Grant Wood did in 1930 when he was inspired by its unusual Gothic window. Visitors can enjoy the collection of American Gothic parodies, an educational exhibit, and videos on Grant Wood's life.

A second website for the site can be found here.

The site offers short films, exhibits, and tours (of the visitor center, not the house itself).

The Society owns and operates two historic sites. The 1885 Pottawattamie County Squirrel Cage Jail is one of 18 revolving ("squirrel cage," "human rotary," or "lazy Susan") jails built. The RailsWest History Center, housed in the 1899 Rock Island Depot, has displays of dining car silverware, a telegraph office, and memorabilia such as porters' uniforms and ticket stubs, as well as railcars and a model railroad.

The sites offer tours and exhibits; the society offers lectures and educational and recreational programs.

The National Railroad Museum, built in 1958, strives to introduce visitors to a chapter in American history that bought wealth and modernity to millions of Americans. The Museum looks beyond the simple technical history of rail to the cultural and economic changes it brought to America.

The site offers virtual tours, event and museum information, teacher resources, and an online gift shop.

Weeksville Heritage Center is dedicated to preserving the Hunterfly Road houses. These houses represent one of the first free African American community in the United States. In 2005, the houses underwent a three million dollar restoration, and now sit in a park in central Brooklyn, similar to their original setting. A new education/cultural center is being built now.

The site offers information about historical Weeksville, an archive of press releases, and information about upcoming events.

The National Capital Trolley Museum preserves and interprets the heritage of electric and interurban railways of Washington, D.C. and environs for the benefit of present and future generations, while supplementing its collections with significant national and international objects to enhance its interpretive programs.

The museum offers exhibits, street car rides, educational programs, and occasional recreational and educational events.

The Eureka Heritage Society provides leadership, education, and advocacy to preserve and enhance Eureka's irreplaceable historic structures and neighborhoods so as to ensure a legacy for future generations. It maintains the Romano Gabriel Garden, fashioned from discarded crates and boards by Romano Gabriel, a carpenter turned sculptor. The garden has been "transplanted" and is now housed in a glass exhibit area for viewing.

The society offers occasional recreational and educational events; the garden is open to the public as a viewable exhibit.

The Sacramento Art Deco Society is dedicated to preserving all aspects of the Art Deco period. It aims to raise awareness and appreciation of Art Deco.

The society offers lectures and occasional recreational and educational events.

On the west side of 1,000-foot-high Heceta Head, 205 feet above the ocean, the lighthouse is one of the most photographed on the coast. The light at top of 56-foot tower was illuminated in 1894; the automated beacon, seen 21 miles from land, is rated as the strongest light on the Oregon coast.

The site offers tours and occasional recreational and educational events.