Nuclear waste dump site now an environmental sanctuary.

Oldest building in California still in use.

One of few lasting examples of the brief octagon craze that developed into folly.

This “living museum” at UCLA exhibits thousands of plant species from all over the world.

This glamorous old building is said to have inspired the Tower of Terror.

This brightly made over hotel hides decades of suicide, serial killers, and mysterious deaths.

Dentist's hated concrete colossi are now beloved icons of the community.

The arch that celebrated the completion of the Lincoln and Victory highways.

Traversing these canyons, visitors can take in stunning views and glimpses of the region's history.

California's largest steel arch bridge.

“It's the quality” (but probably also the drive-through donut tunnel) that has attracted diners since 1968.

A spiritual retreat in the heart of Los Angeles offers stunning gardens and a labyrinth to lose yourself in.

This jagged colossus of a building is mostly held together by an enormous concrete exoskeleton.

One of the richest places in the United States has a cursed street.

Ingenious bakery opens up the first Cupcake ATM at their flagship location in Beverly Hills.

Storybook cottage in Beverly Hills was once the site of 1920s silent film studio, affectionately known as "The Witch's House."

A tribute to the movie stars who fought to keep Beverly Hills separate from Los Angeles.

First LEED-certified gas station in the United States.

The dramatic upward-curving roof is one of the most iconic examples of Googie architecture that still stands today.

"The only replacement for a DC-3 is another DC-3."

A very tiny church, bisected by a now-dead oak tree and marooned in the middle of a shopping center parking lot.

One of the largest helium balloons in the U.S. is a 112-foot ginormous orange.

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

A plaque and memorabilia collection mark where A&W got its start.