Elaborate series of tunnels where traces of mass suicide are still visible.

This Pringle-shaped ledge makes for the perfect photo op.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

This little blue house pokes out over the campus of UC San Diego, seven stories high.

Famous and forgotten figures lie beneath the faded headstones and decaying planks of wood.

This unique sanctuary invites you to interact with the beautiful birds.

The overgrown ruins of a once thriving World War I-era copper mine.

These unusual houses look like giant boats that washed ashore on a residential street.

The oldest structure in a beachside California city was built to serve eight students.

A ghost town at the airport is now a refuge for blue butterflies.

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

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

World-famous, Pink's still manages to keep its prized cult fetish status.

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

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

The private clubhouse for the members of the Academy of Magical Arts.

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

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

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

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

World's largest collection of serial killer artwork and other macabre exhibits.

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

Scores of vintage street lamps shine along L.A.’s Miracle Mile.