One of the ghostly stops along Route 66.

This large pile of traveler-curated rocks by the dry lakebed is a longstanding tradition on the Old Mojave Road.

A museum dedicated to a sea that should have never been.

This dormant volcanic crater has been converted from a roiling pit of magma to a pleasant hiking spot.

The ghost town that ended up on Ebay.

This sculpture garden in Death Valley makes you feel like you've slipped into some alternate reality.

The most isolated mailbox in America lets desert travelers record their passing.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

A herd of 150 bison live on California's Santa Catalina Island and are at the heart of an ongoing debate between environmental protection and economic expansion.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

The quiet canyon has a tumultuous history involving a doomsday cult.

The site of the house Jack Parsons made famous both in life and death.

Suburban observatory was personal lab of the father of modern astrophysics.

Inspiring Earthlings to Boldly Go.

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

The first privately-owned space capsule to orbit and land carried a secret payload: a wheel of Le Brouère.

This hands-on math museum believes in turning concepts into constructs.

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

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

This forgotten Frank Lloyd Wright house is an architectural marvel at the end of a sleepy residential street.

Dozens of feral felines rule a segment of Hollywood's only graveyard.

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

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

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