Travelers exchange letters with woodland creatures at this mini post office.

This glamorous old building is said to have inspired the Tower of Terror.

The programmatic glory of LA's giant whiskey barrel building has become an upscale reminder of the city's kitschy roadside past.

Exotic feline breeding compound and conservation center.

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

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

The largest drain hole in the world.

Abandoned bridge hidden deep in the San Gabriel Mountains.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

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

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

A modern mechanical planetary system, part of a 10,000 year clock.

The tea room that pushed the boundaries of adorable straight into...we can't find the words.

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

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

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

An eclectic trailer park retreat in the middle of the California desert.

Rainbow-hued local gem in Venice.

Historic funicular railway, believed to be the shortest railroad in the world.

The ghost town that ended up on Ebay.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

An unfortunate geological resemblance to Satan has labeled this Pasadena gorge as a passage to the underworld.

This Los Angeles animation studio is keeping the wonder of stop motion puppetry alive.