San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.

The so-called "Statue of Liberty of Los Angeles" is on a one mutant mission to keep L.A. weird.

Hundreds of trees made from glass bottles make up this forest on Route 66.

Lucha Libre (Mexican Wrestling) themed taco shop.

A bigger-than-life pun that has become a beacon of altruism.

Julia Morgan's Moorish-Gothic labyrinth of fountains, trees, natural light and Oakland's notable dead.

These millipedes glow not out of attraction, but as a not-too-subtle warning.

The abandoned personal amusement park of the King of Pop.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

One of the ghostly stops along Route 66.

This ultra-modern home clings to the slope of the Hollywood Hills on a precarious stilt.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

A "Titanic" superfan changed his name to Jack and set up this strange shrine to the blockbuster, complete with Korean food and Tarot readings.

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

This massive redwood tree has a hole in the base big enough to drive through.

An inconspicuous footbridge beloved by San Diego locals.

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

A storybook European village in Berkeley.

Abandoned bridge hidden deep in the San Gabriel Mountains.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

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

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

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

The largest permanent Monopoly board makes one of the longest games even bigger.