The show's fictional Korean medical camp was created in the Santa Monica hills.

NASA's leading space science lab started by a co-founder with deep ties to the occult.

A Cold War site complete with rusty structures, hiking trails, and beautiful views.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

A strange mishmash of ruins and abandoned structures hint at the park's many lives.

An Old West film set seen in countless TV shows and movies is open for the public to explore.

The beloved dining spot stands at the cross-section of Hollywood and the Old West.

This vintage car parts store is also a museum devoted to a squat little gem of automotive history.

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

Abandoned Air Force base that has fallen into disrepair.

A spiritual center in the Santa Monica Mountains founded by Alice Coltrane after the death of her husband and fellow jazz musician John Coltrane.

The restored estate of a wealthy rancher was once at the heart of an unprecedented legal victory.

This traditional garden in the San Fernando Valley doubled for Star Fleet Academy, and is irrigated entirely by wastewater.

Rusty pieces of metal jutting out of a breakwater are all that's visible of the 12,500-ton ocean liner that capsized just off the beach.

Large but largely ignored, these 42 life-size Liberty Bell replicas were a peculiar, unexplained feature on the facade of a Macy's department store.

Every weekend, the parking lot of this Buddhist temple turns into a Thai street-food paradise.

French prisoners carved these boats from the bones of their meat rations.

This stockpile of junked electronic and mechanical gadgets is a favorite among Hollywood prop masters.

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

One man's vast collection of artifacts and ephemera from matchbooks and postcards to vintage neon signs and cars.

A basement full of treasures lies beneath this inn that has worn many hats throughout its 140+ years.

Graffiti-covered ruins that were once part of a farm owned by a mental hospital.

An abandoned boat that's been stranded mysteriously for decades.

Hundreds of trees made from glass bottles make up this forest on Route 66.