In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

Don't blink or you'll miss it.

A tribute to the statues of Easter Island along Route 66.

All of the 20 occupied houses in this mostly abandoned town feature some curious display of junk art.

What began as an illegal art installation has become a symbol for unity, ocean awareness, and coastline preservation.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

Not truly a ship nor a building, the Navy's first and last "landship" is now abandoned due to clerical issues.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

This futuristic bridge is one of the longest self-anchored pedestrian bridges in the world.

The classic Atari game's iconic aliens have invaded downtown San Diego.

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Towering basalt columns, a creation of fire and ice.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

A charming desert roadside bakery that produces 10 times more bread daily than it has residents in its town.

The hundreds of movies and television shows shot in this high desert town are commemorated in a unique museum.

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

The "3rd largest" city in California is an empty mirage of suburbia in the middle of nowhere.

Abandoned Air Force base that has fallen into disrepair.

Like a kitschy mirage in the Mojave, this eatery serves up classic 50s-style diner meals and a dinosaur sculpture garden.

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