Civil War dumping ground for the bodies of terrorized Union sympathizers.

Only known mainland rookery of the threatened Stellar sea lion.

The hidden jewel of Disneyland: a members only playground for the Disney elite.

A living time capsule of the 1960s Richardson Bay water-front.

Internationally-recognized arts center housed in a century-old former military barracks.

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

Neoclassical Revival mansion and set of horror cult classic Phantasm.

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

An extensive collection of ancient Egyptian artifacts and mummies.

Haunting and beautiful trees, doomed to die.

Historical trolley restoration and operation at History San Jose, Kelly Park.

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

A popular tourist cave with a dark past.

A museum dedicated to the alleged Roswell Incident.

Concrete strongholds stand guard over the Golden Gate.

The rusting remains of the largest assembled WWII fleet on the West Coast.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Abandoned railroad tunnel is home to a colony of three million Mexican free-tail bats.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

France's most famous cemetery, with some of its most curious tombs.

The celebrated eyesore created by starry-eyed sweethearts.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.