Coastal dunes, site of buried Egyptian movie set and former utopian colony.

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

Order scoops of pandan, lychee, and black sesame at this family-run institution.

Subterranean house made out of a grain silo, located in the Santa Cruz Mountains.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

A winding path built in secret on the edge of the continent.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

Golden Gate Park's historic collection of plants.

A huge musical instrument played by the ocean.

A strange house built only at night, with rumored mystic inspiration.

This corn maze so big you may want to pack a lunch, and possibly a flaregun.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

An "anarchical" no man's land, complete with garbage sculptures and a hobo-run "Landfillian Library."

A comprehensive collection of Pez dispensers.

One of the most unusual geological features, recognizable from a dozen hit movies.

A New England-style lighthouse along California's beautiful Highway 1 gets a re-do.

This quirky roadside attraction dives into the many theories surrounding North America's most infamous hairy cryptid.

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

The rocks in this arid basin leave trails of movement behind them.

Two rocks in a perpetual kiss and one of "the most romantic spot in America."

Smooth basaltic rocks tell a tale of ancient glacial waterfalls.

Home to the "Circus" trees created by Axel Erlandson.

A popular tourist cave with a dark past.

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