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

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

The largest drain hole in the world.

The unbelievably opulent home built for an infamous newspaperman.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

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

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

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

This brightly made over hotel hides decades of suicide, serial killers, and mysterious deaths.

A ghost town at the airport is now a refuge for blue butterflies.

Historic funicular railway, believed to be the shortest railroad in the world.

The ghostly remains of an accidental sea.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

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

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

A hand-built folk art installation covered with messages of God's love.

World-famous, Pink's still manages to keep its prized cult fetish status.

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

Resting place of Hollywood's immortals is also site of summer film screenings.

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

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

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