Sunset-colored dunes of volcanic ash make taking a poor photo impossible.

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

A grove of "candelabra redwoods" deep in California's Lost Coast.

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

A trash dump made beautiful by nature's power.

A raised boardwalk winds through a thicket of stunted, century-old trees no more than nine feet tall.

A tree grown from astronaut seeds which were exposed to cosmic rays.

The oldest lighthouse on America's west coast no longer needs keepers, yet they maintain the site anyhow.

Two rocks in a perpetual kiss and one of "the most romantic spot in America."

One of the most elaborate displays of Jellyfish is on display at the aquarium.

More than 700 species live within this murky marvel of a swamp on California's coast.

Housed in a memorial lighthouse, this museum relays the history of surfing, beginning with the antics of royal Hawaiian teenagers.

Elephant seals and sea lions have turned the abandoned buildings on this island into their endangered love shack.

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

From the Difference Engine to the Cray-1, all under one roof.

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

The headquarters of the semiconductor giant has a 10,000-square-foot museum.

San Francisco Bay's ghost town.

The longest burning light bulb in the world.

The California capital city once stood 10 feet lower than it does today.

I Street Bridge is the heaviest swinging center bridge in the United States.

Where hills of dirt conceal the burial ground of one of the most powerful ancient Native American societies.

The Ozarks' strangest dwelling.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.