Sunset-colored dunes of volcanic ash make taking a poor photo impossible.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

This lesser known Hearst estate is a fairytale village built from the stolen bones of historic European buildings.

The wooden airship was the largest flying boat ever built.

An abandoned Cold War missile radar site.

A Roman-inspired temple once controlled half of San Francisco's waters.

The black lab that was voted mayor of a California town is forever remembered by a life-size statue.

The perfect spot for a picnic, right next to a giant ballistic missile.

The oldest Naval cemetery on the West Coast.

Thousands of crosses and markers for soldiers who lost their lives in Iraq and Afghanistan blanket a California hillside.

The largest drain hole in the world.

The rusting remains of the largest assembled WWII fleet on the West Coast.

The longest burning light bulb in the world.

This mountaintop beacon is only lit three times a year but shines like some kind of all-seeing eye.

The only parking meter in the entire town, it is surrounded by 100 free spaces.

Before it was abandoned and left to rust alongside the road, this riverboat starred in a John Wayne movie.

A ruined hotel with an unlucky history and an eerie present.

This 15-story mural celebrates the 50th anniversary of the musician's iconic "At Folsom Prison" album.

An eccentric home stands out in an otherwise average neighborhood with mosaics, mini topiaries, and kinetic sculpture.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

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

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

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

Stroll through a wonderland of stupendous moss-covered trees.