This massive redwood tree has a hole in the base big enough to drive through.

Hidden in the hills of Hollywood, this secluded Oz-themed garden is dotted with dozens of thrones.

The location of the last stand of Charles Manson's doomsday cult.

The programmatic glory of LA's giant whiskey barrel building has become an upscale reminder of the city's kitschy roadside past.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

Julia Morgan's Moorish-Gothic labyrinth of fountains, trees, natural light and Oakland's notable dead.

An unreal vintage shop that wears its dadaist influence on its zombie fish.

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

Visible below the waves are memorials to the city's Gold Rush dead.

Most famous work of one of Frank Lloyd Wright's sons.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

A whimsical antique shop with a strong air of mystery, filled with items from ages, and what feels like worlds, past.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

A storybook European village in Berkeley.

The largest drain hole in the world.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

A prohibition-style speakeasy takes up residence in the last Victorian residence in Hollywood.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

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

A winding path built in secret on the edge of the continent.

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

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