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.

In the middle of San Francisco Bay sits Angel Island State Park. Three thousand years ago, the island was a fishing and hunting site for Coastal Miwok Indians. It was later a haven for Spanish explorer Juan Manuel de Ayala, a cattle ranch, and a U.S. Army post. From 1910 to 1940, the island processed hundreds of thousands of immigrants, the majority from China. During World War II, Japanese and German POWs were held on the island, which was also used as a jumping-off point for American soldiers returning from the Pacific. In the '50s and '60s, the island was home to a Nike missile base.

The site offers tours, exhibits, and educational and recreational programs and events, and works in coordination with the Angel Island Immigration Station Foundation, listed above, for educational programs focusing on the immigration history of the island.

Before European settlement, Native Americans planted their crops of corn and beans on Conanicut Island overlooking Narragansett Bay. In 1789, Job Watson purchased a piece of this rich farmland, and for the next two centuries, five successive generations of the Watson family cultivated the land, changing their crops and practices as needed to adapt to the evolving market. Today, the property is still a working family farm. The farmers raise cattle and sheep for beef, lamb, and wool markets; grow acres of grass for winter hay supplies; make compost for fertilizer; and cultivate a large vegetable garden. The 1796 house, still used as the farmers' residence, is not open to the public. Visitors are welcome to explore the farmland on their own, following a self-guided walking tour. Educational programs and group tours are available by appointment.

The farm offers tours and educational programs.

At the end of the 19th century, railroads opened the Berkshires, which soon became a summer destination for wealthy New Yorkers. This 1825 brick structure, which dates from the late Federal period, was purchased by William and Elizabeth Doane as a summer home in 1875. Around 1900, the Doanes doubled its size by adding a shingle-style ell and remodeled the interior of the main house. They decorated the house in an eclectic manner with European and American furnishings, much of which they collected during their extensive travels. The house was preserved by the Doanes' daughter, Vipont Merwin, who added her own memorabilia to the decorative scheme.

The house offers tours.

Cogswell's Grant was the summer home of Bertram K. and Nina Fletcher Little, preeminent collectors of American decorative arts in the mid 20th century. Through her research and innumerable publications, Mrs. Little charted new areas of American folk art (which she preferred to call "country arts"), such as decorative painting, floor coverings, boxes, and New England pottery. In 1937, the Littles purchased this 18th-century farmhouse overlooking the Essex River as a family retreat and place to entertain. They restored it carefully, trying to preserve original 18th-century finishes and carefully documenting their work. In more than 50 years of collecting, they sought works of strong, even quirky character, and in particular favored objects with their original finishes and New England histories. They decorated the house for visual delight rather than historic accuracy. The result is rich in atmosphere and crowded with collections of things—primitive paintings, redware, painted furniture, stacked Shaker boxes, weather vanes, and decoys—that have since come to define the country look.

The house offers tours.

In 1796, young Daniel Marrett, a recent Harvard graduate, moved to Standish to become the town parson. The grand house he purchased reflected his status as the community's leading citizen. Over the years, his children and grandchildren enlarged and updated the house, but left unchanged many furnishings and interior arrangements as relics of the past. They preserved the southwest parlor exactly as it had appeared on the occasion of a family wedding in 1847. In 1889, the family celebrated the house's centennial by refurbishing several of the rooms with reproduction heirloom wallpapers and bed hangings. Today, the visitor can see the layering of eras and tastes that occurs when a family resides in one house for three generations. The Marrett sisters' extensive perennial garden, which they laid out in the 1920s and 1930s, has been restored.

The house offers tours and educational and recreational programs.

A man of great energy and many talents, Eric Sloane (1905&150;1985) was a prolific artist, author, and illustrator and an avid collector of Americana. His extensive collection of hand tools is displayed in a building gifted to the State by the Connecticut-based Stanley Works to mark the company's 125th anniversary. The collection reveals an American heritage of craftsmanship. Adjacent to the museum, Sloane himself built a pioneer cabin as described by Noah Blake in Diary of An Early American Boy, an 1805 diary published by Sloane. The Kent Iron Furnace, which is on the museum property, began production of pig iron in 1826 and continued for almost 70 years. The remains of the granite blast furnace with its Gothic arches can be seen just below the museum.

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

"Organized in 1986, the Muskegon Area Sports Hall of Fame honors our own heroes and legends, spanning the rich history of sports achievement in the Lake Michigan shoreline area anchored by Ludington to the North and Grand Haven to the south."

The 1925 Casa del Herrero, meaning "house of the blacksmith," is a Spanish Colonial-style estate. The home is furnished with pieces original to the site; and contains drawings, sketchbooks, horticultural records, antiques, and books, which once belonged to the family in residence. The grounds contain extensive gardens. During the 1920s, a new form of distinctive California landscape design inspired by Spanish land and gardens rose to prominence. While the site name includes the word "blacksmith," the owner George Fox Steedman was an engineer by trade and a silversmith for enjoyment.

The site offers period rooms; gardens; guided tours of the residence, workshop, and gardens; and guided group tours. Tours are by reservation only, and all participating children must be at least 10 years of age. With the exception of holiday tours, tours are available between mid-February and mid-November only.

"The Henry Ford Estate - Fair Lane includes the residence of Clara and Henry Ford and his powerhouse consisting of not only his generators, but also his research laboratory and garage."