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

Lemon Grove, California is known for its giant lemon...and mummified bodies.

Once a place of peaceful repose, this sanitarium now faces an uncertain future.

Everyone remembers Laurie Strode from Halloween, but this is the house where most of the blood was shed.

Once the gateway to the utopian dream-village of a Civil War embalmer.

A giant donut stands as a popular symbol of Los Angeles iconography.

Bits and pieces from the ill-fated Donner Party's winter cabins.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Arcadia is home to a haven for nature geeks and 80s TV lovers alike.

Smooth basaltic rocks tell a tale of ancient glacial waterfalls.

A vast city of the dead, where the deceased outnumber the living by more than a million.

This grand mansion has starred in everything from Bones to Buffy.

This unlicensed collection of fast-food memorabilia sits on the site of the first ever McDonald's restaurant.

Commonly referred to as the most photographed Victorian home in the United States.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

This ultra-modern home clings to the slope of the Hollywood Hills on a precarious stilt.

Ten 25-foot-tall, beehive-shaped kilns, abandoned in Death Valley.

An offbeat angle on the ocean viewed through an antiquated lens.

Located on 420 acres in the high desert, this spiritual center is dedicated to the "science of the future."

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

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

The haunting ruins of Jack London's dream house.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.