There is still gold in the foothills of the Sierra Nevada, at the California State Mining and Mineral Museum, in historic Mariposa. This is where explorers John C. Fremont and Kit Carson found the rich Mariposa Vein and opened the first mill to crush ore and extract gold in California. Visitors can discover for themselves California's mineral wealth, colorful history, and geologic diversity as they view the official mineral collection of the state of California. The collection, which began in 1880, contains over 13,000 objects including mining artifacts, rare specimens of crystalline gold in its many forms, as well as beautiful gem and mineral specimens from California and around the world. The museum displays the Fricot "Nugget," a rare specimen of crystallized gold discovered in the American River in 1864. This 13.8-pound specimen is the largest remaining intact mass of crystalline gold from 19th-century California, when these finds were more common but usually were simply melted down. Visitors can also take a trip back in time as they walk through a mine tunnel and see how gold was mined in the mid-1800s, when California was a wilderness, being transformed by rapid development. The museum's assay office and working scale model of a stamp mill will help visitors discover how gold was found and extracted from the rocks.

The museum offers exhibits, tours, educational programs, and educational and recreational events.

One of the nation's only bank museums, the Farmer's Bank was incorporated in 1812 and opened its Petersburg branch in 1817. The first floor is now exhibited as a bank.

The bank is open to the public.

Originally a cranberry farm and packing plant, the former company town called Double Trouble is a window into past and current industries in the Pinelands. The Double Trouble Company was formed to sell timber, millwork products, and cranberries. A succession of sawmills has been on site since the mid-1700s. The village consists of cranberry bogs and 14 original historic structures dating from the late 19th century through the early 20th century including a general store, a schoolhouse and cottages.

The site offers tours.

Six miles west of Redding, a row of old, half-ruined, brick buildings remind passing motorists that Shasta City, the lusty "Queen City" of California's northern mining district, once stood on this site. These ruins and some of the nearby roads, cottages, and cemeteries are all silent but eloquent vestiges of the intense activity that was centered here during the California gold rush. Iron shutters still swing on massive, old, iron hinges before the doors and windows of grass-filled, roofless buildings that once were crowded with merchandise, and alive with the human sounds of business, trade, and social endeavor. The County Courthouse is restored to its 1861 appearance, the year when it was converted from commercial uses to become the Shasta County Courthouse. Today the building is filled with historical exhibits, and an unparalleled collection of historic California artwork that make it the central figure of Shasta State Historic Park.

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

The Phoenix Museum of History presents the historical development of Phoenix, AZ and the Salt River Valley. Exhibits topics include the first area general store, local people and places of note, and the Hohokam, among other subjects. Main interpretive focuses include archaeology, prehistory, family life, transportation, business, industry, and architecture.

The museum offers exhibits, curriculum-based program and tour options, a fourth grade outreach program, Scout programs, and research library access. Student programs must be scheduled at least four weeks in advance.

The Kentucky Derby Museums presents the significance and history of Thoroughbred racing; Churchill Downs; and the Kentucky Derby, a world-renowned annual horse race. The grounds include the graves of several favorite Derby horses—Carry Back, Swaps, Brokers Tip, and Sunny's Halo. Permanent exhibits address Kentucky Derby hats; races from 1918 to present day; the jockey stance; winning horses, owners, and trainers; jockey and stable life; handicapping; and African Americans in Thoroughbred racing.

The museum offers interactive and traditional exhibits, films, trivia tests, guided walking tours of Churchill Downs, barn and backside van tours, behind the scenes tours, legends and lore tours, student tours, curriculum-based programs, curriculum-based outreach programs, hands-on activities, scavenger hunts, summer camps, and a cafe. Social studies program topics range from economics to urbanization. The website offers a suggested reading list for students and relevant vocabulary.

The Moriah Historical Society maintains the Iron Center, a museum of local railroad and mining history. Housed in a restored carriage house, the Iron Center focuses on the mining and transportation of iron ore from Lake Champlain.

The museum offers a short video and exhibits, and is open to school groups, by appointment, free of charge.

Petit Jean features CCC/Rustic Style architecture that endures as a legacy to the craftsmanship and conservation achievements of the Civilian Conservation Corps. The park includes three National Historic Districts and contains more than 80 buildings, trails, and bridges. The most prominent architectural structure, Mather Lodge, stretches along the bluff of scenic Cedar Creek Canyon. The bluffs, waterfalls, and vistas of Petit Jean Mountain inspired the creation of Arkansas's first state park, and along with it Arkansas's state park system.

The site offers occasional recreational and educational events.

Mammoth Spring, the 10th largest spring in the world, and a National Natural Landmark, flows nine million gallons of water each hour. Following the Civil War, this immense water source attracted industrialists who built a gristmill, and later, a dam here. Next, the investors opened large roller mills and a shoe factory. Soon after, the railroad arrived. Still standing near the spring is the charming 1886 Frisco Depot. At the dam, you can walk through the 1925 power plant that brought electricity to the region long before most other rural areas.

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

Cornwall Furnace is a unique survivor of the early American iron industry. Originally built by Peter Grubb in 1742, the furnace underwent extensive renovations in 1856–57 under its subsequent owners, the Coleman family, and closed in 1883. It is this mid-19th-century ironmaking complex which survives today. At Cornwall, furnace, blast equipment, and related buildings still stand as they did over a century ago. Here visitors can explore the rambling Gothic Revival buildings where cannons, stoves, and pig iron were cast, and where men labored day and night to satisfy the furnace's appetite for charcoal, limestone, and iron ore.

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