Stroll the grounds built by murder, suicide, and dirty oil money at one of Hollywood's most filmed mansions.

A common entry point to the Griffith Observatory trail holds its own wonders.

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

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.

An eclectic trailer park retreat in the middle of the California desert.

One of the ghostly stops along Route 66.

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

The final resting place of a space program monolith.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

The ghost town that ended up on Ebay.

An unfortunate geological resemblance to Satan has labeled this Pasadena gorge as a passage to the underworld.

The last of its kind in the country.

Magical-looking cottages that inspired one of the most famous animated films ever.

The programmatic glory of LA's giant whiskey barrel building has become an upscale reminder of the city's kitschy roadside past.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

This Los Angeles animation studio is keeping the wonder of stop motion puppetry alive.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

Panorama exhibition hall in old silent theater with a beautiful backyard garden.

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

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.