An ominous concrete cube cuts a dystopian silhouette atop this California mountain.

A New England-style lighthouse along California's beautiful Highway 1 gets a re-do.

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

The space-age building is home to one of the few remaining rotating restaurants in America, and the only one that inspired a 1980s sitcom.

Decommissioned experimental solar facilities that pioneered solar energy technology.

This enormous World War II relic is one of the largest wooden structures in the world.

A pier that used to act as a busy ferry dock is now a decaying favorite of local fisherman and urban artists.

The world's first permanently occupied mountain-top observatory continues to report on the stars.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

An alley covered with 20 years of bubble gum.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

This odd California folly seems like it was almost designed to accumulate urban legends.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

Once close to extinction, there is no shortage of elephant seals on the beaches of Año Nuevo State Park.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

Join the circus for a few lessons to learn clowning, acrobatics, and Chinese contortion.

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

From the sky, a kaleidoscope of color brightens the grey landscape of the San Francisco Bay.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

Spiral labyrinth hidden in the hills above Oakland, CA.