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

A 1920s speakeasy that had rum runners racing up and down the shores of California.

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

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

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

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

A hidden subterranean installation offers a view of the sky.

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

This controversial depiction of the "Founder of California" looks as though it was sculpted from mashed potatoes.

A strange house built only at night, with rumored mystic inspiration.

At this California chicken ranch, four bucks will get you 18 eggs and a chorus of dancing animatronic poultry.

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

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

Neither Spanish settlers nor anyone since has been able to tell who built these strange California rock walls.

A humble garage, world-famous for being the epicenter of a technology revolution.

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

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

A life-sized mammoth sculpture marks the spot where the remains of a Columbian mammoth were discovered in 2005.

A giant can of fruit cocktail is all that remains of what was once the world's largest cannery.