The knock-off oil painting capital of the world.

A castle that was built stone by stone by an eccentric journalist.

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

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

The United States Capitol's former columns still stand.

A massive underwater sinkhole made famous by Jacques Cousteau.

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

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

The rocks in this arid basin leave trails of movement behind them.

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

The fairy tale castle of the "fairy-tale king."

Medicinal spa created with the discharge from a geothermal energy plant.

World's first "penitentiary," meant to be humane, drove men insane.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

A huge musical instrument played by the ocean.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

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

This scalding hot river was thought to be a myth until one geoscientist made it his quest to study the mystical waters.