Thousands of migrating monarchs overwinter clustered amongst the eucalyptus trees.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

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

A dwindling menagerie of anthropomorphic oil derrick animals still dot the barren California landscape.

Radioactivity still cause for concern at this urban explorer's paradise.

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

Nuclear waste dump site now an environmental sanctuary.

Bits and pieces from the ill-fated Donner Party's winter cabins.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

Playable, historic pinball machines fill this Alameda museum.

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

Dive bar built out of the remains of a whaling ship.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

A Mysterious Masonic tomb in San Luis Obispo.

A house built from trash known as the poor man's Hearst Castle.

The haunting ruins of Jack London's dream house.

A popular tourist cave with a dark past.

A monument to the love people have for their pets.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

One of the oldest reform schools in the United States, home to wayward boys such as Merle Haggard, now abandoned.

The unbelievably opulent home built for an infamous newspaperman.

The largest drain hole in the world.

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

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.