Longtime headquarters of controversial boys' club for the world's wealthiest and most powerful.

A Mysterious Masonic tomb in San Luis Obispo.

The location of the last stand of Charles Manson's doomsday cult.

World's largest collection devoted to one fruit.

“It's the quality” (but probably also the drive-through donut tunnel) that has attracted diners since 1968.

A popular tourist cave with a dark past.

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.

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

A crumbling wizard is one of the final reminders of a roadside Middle Earth.

A large instrument played by the wind.

An old California photo stand has been turned into a shrine to the cozy art of crochet.

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

A former utopian healing center created by a huckster and built by derelicts.

"The Hoppiest Place in the World" holds the world’s largest collection of bunny memorabilia and is a singular testament of a couple's devotion to all things Leporidae.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

A library and museum dedicated to typography.

Every weekend, the parking lot of this Buddhist temple turns into a Thai street-food paradise.

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

The unbelievably opulent home built for an infamous newspaperman.

Abandoned bridge hidden deep in the San Gabriel Mountains.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

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

Visible below the waves are memorials to the city's Gold Rush dead.

Canyon walls shrouded in ferns.