L.A.'s oldest operating bowling alley is a beautifully restored homage to its speakeasy days.

Secret US military film studio in the Hollywood Hills.

The beautiful 1920 Pantages Theatre remains hidden just underneath the LA Downtown Jewelry Exchange.

A quirky collection of figurines backdropped by city views is hidden next to a popular restaurant in the Hollywood hills.

One of the world's largest collections of rare and magnificent bird specimens.

The hotel room where Janis Joplin tragically died has now become a makeshift shrine to the singer.

Hidden above a drug store on a nondescript corner of Lincoln Heights is a private clubhouse for intrepid explorers.

Beautiful Victorian buildings from L.A.'s forgotten architectural past.

The neighborhood shop is a sort of tiny cactus museum full of exotic specimens you can take home.

A common entry point to the Griffith Observatory trail holds its own wonders.

No matter what it might seem like on film, most scenes filmed on a plane are filmed at this LA studio.

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

A faux European lane smack dab in downtown L.A.

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

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

A hospital closed seemingly in the middle of operations, leaving behind fodder for horror films and ghost hunters.

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

Venue for strange sideshow displays and musical acts.

Shop selling 500 flavors of soda has something for everyone.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

The legendary building that needed ghostly approval before being built.

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

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

This whimsically unique butterfly farm focuses solely on creating habitats for the gentle insects.