This star-studded Old Hollywood restaurant is where fettuccine Alfredo made its United States debut.

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

There are lots of hands and feet stamped in the cement in front of Grauman’s Chinese Theater, but Mel left behind something extra.

An iconic location along the Los Angeles River where countless movie scenes are filmed.

Nancy Thompson's Home from "A Nightmare on Elm Street."

The final resting place of a space program monolith.

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

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

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

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

Resting place of Hollywood's immortals is also site of summer film screenings.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

The legendary building that needed ghostly approval before being built.

A gateway to a mysterious network of underground tunnels.

A vast necropolis where you'll find the elaborate mausoleums of Argentinian tango stars.

Xul Solar was an artist of alternate worlds, inventor of languages, and dreamer of utopias.

Visiting this cacophonous collection of vintage novelties is like stepping into the mind of a crazed toymaker.

A scientific repository of goiters, boils and other ailments throughout Mexican history.

Twelve natural mummies are displayed in the crypt of this former monastery school.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

Part bookstore, part café, and part forest.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

A mud statue stands in the dark tunnels, seeming to hold up the weight of the city above.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.