Allaire State Park houses Allaire Village, a well-preserved early 19th-century ironmaking town with a general store, blacksmith shop, carpenter's shop, owner's house, foreman's house, church, and museum.

A second website, specifically for the Village, can be found here.

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

The Beckley Iron Furnace once produced iron for the manufacture of railroad car wheels. It is Connecticut's best preserved example of a technology that has long since vanished.

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

The site offers tours.

The Museum preserves and interprets the heritage of the Commonwealth's prosperous lumber era when white pine and hemlock were the wealth of the nation.

The museum offers exhibits, tours, workshops, and occasional recreational and educational events.

This remote military post was established in 1853 to assist in conflict resolution between Native Americans and gold-seekers and settlers who had begun flooding into the area after the discovery of gold in the northern mines. Fort Humboldt was formally abandoned in 1870 and rapidly fell into decay. Today, only the hospital building remains out of the original fourteen structures. It is now a historical museum dedicated to telling the story of the Fort and the Native American groups, including the Wiyot, Hoopa and Yurok of this region. In the 1980s the Surgeon's Quarters was reconstructed and there are plans for its establishment as a period house museum. In 2001 an historic herb and vegetable garden was recreated adjacent to the Hospital. The park also includes a Logging Museum and open air displays of historic 19th- through mid-20th-century logging equipment including the Dolbeer Steam Donkey, "Lucy"; the Bear Harbor Lumber Company's Gypsy Locomotive #1; and the Elk River Mill and Lumber Company's #1 "Falk" locomotive.

The park offers exhibits, tours, and occasional recreational and educational events and programs.

Reed Gold Mine is the site of the first documented gold find in the United States. It was here in 1799 where Conrad Reed discovered a 17-pound yellow rock, which later turned out to be gold and was sold for only $3.50. From this discovery, gold mining spread gradually to nearby counties and eventually into other southern states. Sections of the mine's old underground tunnels are open for guided tours. The site includes a museum with exhibits on gold mining and several nature trails.

The site offers a short film, exhibits, tours, demonstrations, and occasional recreational and educational events.

This park preserves some of the rapidly vanishing cultural landscape of the citrus industry and tells the story of this industry's role in the history and development of California. The park recaptures the time when "Citrus was King" in California, recognizing the importance of the citrus industry in southern California. In the early 1900s, an effort to promote citrus ranching in the state brought hundreds of would-be citrus barons to California for the "second Gold Rush." The design of the park is reminiscent of a 1900s city park, complete with an activity center, interpretive structure, amphitheater, picnic area, and demonstration groves. The land contained within the park still continues to produce high-quality fruits.

The park offers exhibits, tours, demonstrations, educational programs, and recreational and educational events.

The Historic Manheim Preservation Foundation and Museum presents artifacts of local historical interest including written records, china, ceramics, early U.S. furniture, and Stiegel glass. Henry William Steigel or "Baron Steigel" (1720–1785) founded Manheim in 1762 and was the originator of one of the earliest glass manufacturing operations in 18th-century America.

The foundation offers exhibits, the Ensminger Library, and lectures.

Hagley Museum and Library collects, preserves, and interprets the unfolding history of American enterprise. Hagley is the site of the gunpowder works founded by E. I. du Pont in 1802. This example of early American industry includes restored mills, a workers' community, and the ancestral home and gardens of the du Pont family.

The museum offers exhibits, tours, educational programs, research library access, demonstrations, and recreational and educational events (including living history events).

Malakoff Diggins State Historic Park is the site of California’s largest "hydraulic" mine. Visitors can see huge cliffs carved by mighty streams of water, results of the gold mining technique of washing away entire mountains to find the precious metal. Legal battles between mine owners and downstream farmers ended this method. The park also contains a 7,847 foot bedrock tunnel that served as a drain. The visitor center has exhibits on life in the old mining town of North Bloomfield.

The park offers exhibits, tours, and occasional educational and recreational events.

The Museum tells the story of the people who came from Europe to work in the anthracite mining and textiles industries. On a tour of the facility visitors will experience the lives of proud people who endured harsh working conditions yet carved out communities filled with tradition. The diverse collection highlights life in the mines, mills, and factories. Visitors are welcomed into the families' homes and neighborhoods with a moment of reflection in the kitchen, a visit to the pub, or a seat in a local church.

The museum offers exhibits, tours, trolley rides, research library access, and occasional recreational and educational events.