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

Version of the French Riviera destroyed by the sea.

The ghost town that ended up on Ebay.

One of the ghostly stops along Route 66.

The ruins of the castle that chemicals built.

The home of one of California's most important horticulturalists wilts amidst a lovely park.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

The Los Angeles flood disaster that took 400 lives and ended the career of William Mulholland.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

Successful artist residence program has filled this ranch with dozens of sculptures over the years.

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

A classically inspired temple in Redwood City.

San Francisco Bay's ghost town.

A lonely Gondola stuck on a traffic circle sits in a spot where it once would have floated down the Grand Canal.

In a city filled with Frank Gehry buildings, one stands out as one of the architect's weirder works.

One of the first skyscrapers in Santa Monica, and a famous getaway for the Hollywood elite of then and now.

World War II-era Nazi compound nestled in the Santa Monica hills.

Abandoned bridge hidden deep in the San Gabriel Mountains.

The hidden jewel of Disneyland: a members only playground for the Disney elite.

The site of murders and Satanic cult gatherings.

A skeletal collection of former nautical mainstays.