Centuries of crashing waves carved out this small hole in the rock, which lights up at certain parts of the year.

A 19th-century cabin built into a hollowed-out Sequoia tree.

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

Raised illegally, Reggie now lives at the Los Angeles Zoo after authorities spent years tracking him down.

The remnants of a failed socialist commune can still be found just off a California highway.

A herd of 150 bison live on California's Santa Catalina Island and are at the heart of an ongoing debate between environmental protection and economic expansion.

Inky sludge oozes to the surface of this beach thanks to a rare natural tar seep.

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

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

A charming desert roadside bakery that produces 10 times more bread daily than it has residents in its town.

This ramshackle ghost town is comprised of mining-era buildings collected from around the region.

Four hundred granite steps were built into this massive rock by the National Park Service.

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.

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

Oldest building in California still in use.

Finally the worlds of UFO enthusiasts and beef jerky lovers have come together in this roadside shop.

Thousands of migrating monarchs overwinter clustered amongst the eucalyptus trees.

Like a kitschy mirage in the Mojave, this eatery serves up classic 50s-style diner meals and a dinosaur sculpture garden.

Colorful Native American paintings are hidden within this small cavern.

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

Abandoned Air Force base that has fallen into disrepair.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

Happy harbor seals frolic and snooze on this warm, sandy stretch of coast.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.