Nine Gardens in one—with tea service.

A beautiful bamboo trail tucked in this famous Japanese Shrine.

A massive cave complex boasts some of the clearest water (and most charming bats) in the world.

Hanging over one of Japan's "hidden valleys," these vine bridges must be remade every three years.

Bioluminescent firefly squid light up this Japanese fishing port.

Experience park where visitors are told to expect the unexpected.

Every autumn, this hillside is ablaze with red summer cypress.

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

The house where Good Will Hunting was written is a surreal fairytale abode.

A fashion designer's dazzling world of Japanese collectibles is hidden in a warehouse downtown.

The L.A. Zoo has a secret garden of rare bootleg cycads, a palm specimen dating back 280 million years.

A multimedia experience that chronicles the atrocities of racism.

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

The final resting place of a space program monolith.

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

This grand mansion has starred in everything from Bones to Buffy.

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

A castle that was built stone by stone by an eccentric journalist.

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

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

A library of rare occult books in Los Angeles.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

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

A subterranean haunt where wine and homemade biscottis are always on the menu.