An outdoor sculpture park of giant pink robots and post-apocalyptic Christmas scenes.

This charmingly homemade amusement park has been growing for 40 years.

Outsider Art Community.

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

A beautiful 62-acre Catholic shrine and botanical garden.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Explore 10 acres of environmental sculptures.

A museum dedicated to the history and exploration of both popular music and science fiction.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

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

Its buzzing collection honors vibrator history.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

A spiritual retreat in the heart of Los Angeles offers stunning gardens and a labyrinth to lose yourself in.

Magical-looking cottages that inspired one of the most famous animated films ever.

Most famous work of one of Frank Lloyd Wright's sons.

Small museum packed with artifacts recovered by the man rumored to be the real-life inspiration for Indiana Jones.

Hidden in the hills of Hollywood, this secluded Oz-themed garden is dotted with dozens of thrones.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

A prohibition-style speakeasy takes up residence in the last Victorian residence in Hollywood.

Established in the '60s, a family-owned tropical drink bar founded by Ray Buhen, bartender to the stars.

One man's homage to the sun continues to grow like a glass fractal.

The art and history of the velvet painting are on full display in this Los Angeles museum.

The quiet canyon has a tumultuous history involving a doomsday cult.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.