Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

The largest permanent Monopoly board makes one of the longest games even bigger.

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

Explore 10 acres of environmental sculptures.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Beautiful Victorian buildings from L.A.'s forgotten architectural past.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

Canyon walls shrouded in ferns.

The remains of the first punk club in L.A.

An inconspicuous footbridge beloved by San Diego locals.

An essential stop before plundering, BYO Cutlass.

The ghostly remains of an accidental sea.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Quite simply the largest tree in the world (by volume).

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

A hotel and restaurant serving as the mecca of kitsch.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.