A Jenga-style cylindrical tower of books that appears to go on forever.

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

Perhaps the most unique of any Frank Gehry design for one simple reason: Gehry himself actually lives here.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

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

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

Golden Gate Park's historic collection of plants.

The stones that traveled from Spain to eventually become a holy place for San Francisco's nature worshippers.

This partially buried wreck is one of the most complete of its kind but is only revealed when the sea allows.

A collection of memorabilia from the Beat era in the back of a San Francisco bookstore.

A monument to the love people have for their pets.

An essential stop before plundering, BYO Cutlass.

A museum befitting the city responsible for supplying the majority of the world's LSD.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

A 140-year-old castle with underground caves hidden in San Francisco.

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

A psychedelic labyrinth on the San Francisco bay.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

An artsy hidden staircase leads to breathtaking views of San Francisco.

An eccentric home stands out in an otherwise average neighborhood with mosaics, mini topiaries, and kinetic sculpture.

The California capital city once stood 10 feet lower than it does today.

Room 32 of the Alta Cienega Motel has grown into a shrine to the Lizard King.

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.