A once-secret library of Freemason history in Catalonia.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

Turntable anonymously received orphans, alms, and groceries.

Medical and zoological curiosities for sale.

This serene oasis in an affluent Los Angeles neighborhood holds some of Gandhi's ashes and got Elvis into Eastern Philosophy.

A one-of-a-kind collection of a unique medium.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Historic marionette theater features thousands of handmade puppets and free cups of ice cream.

This opulent hotel has been visited by Spider-Man, Charlie's Angels, and the Ghostbusters.

America's most famous piece of self-built architecture.

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

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

The legendary building that needed ghostly approval before being built.

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

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

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

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.