An eerie natural formation that looks right back at you.

The second-largest giant sequoia in the world.

The last remnant of a tree that helped prove to the world that sequoias are real—and they’re spectacular.

The world's first motel is now an administrative building for an apple farm.

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

'Cause the fence start shaking, the earth was quaking.

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

An enchanting tunnel of cypress trees leads to an old morse code station still used today.

This abandoned boat was left in place thanks to its rotting beauty.

Frank Lloyd Wright died a year before construction on his largest public project even began.

Where a staggering 747 ships were constructed during World War II.

A sparse, solitary sequoia still stands as a living tribute to the famous conservationist who planted it—but it's dying.

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

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

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

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

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

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

Inside this museum, the history of the Walt Disney Family empire is on full display.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

One man's love for East Coast diner culture brought an entire eatery all the way from New Jersey to Colorado.

This 19th century jail was mainly used to incarcerate the drunk and disorderly.

The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.