2 Best Sights in Sacramento and the Gold Country, California

Learn a little bit about Mark Twain's "The Celebrated Jumping Frog of Calaveras County"—and Angels Camp's celebrated frog-jumping contests—at this museum's street-side facility, then head to the 3-acre spread behind it for a fascinating survey of gold rush–era mining history. The grounds include a carriage house with pre-automotive farming and passenger vehicles; another structure contains mining equipment. Outside, in its original mountings, stands the 27-foot-diameter waterwheel that powered machinery at the Angels Quartz Mine.

For different sorts of underground jewels, wander into an ancient limestone cave, where stalactites and stalagmites, not gold and silver, await. Take the 235-step Spiral Tour down a staircase built in 1922 into the vast main cavern, or descend farther on the Expedition Tour caving adventure. It's best to make a reservation here.