Underground tunnels remain beneath this abandoned mental asylum.

The biggest pinball arcade in the world has over 600 pinball machines, and 300 arcade machines.

The last of its kind in the country.

A mysterious monument meant to be a guide into "an Age of Reason" was destroyed after an apparent bombing.

A historic train ride from California to Mexico.

See four top-secret US spy aircraft of the Cold War era, including the legendary SR-71 Blackbird and the A-12 Oxcart.

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

The legacy of a wealthy executive and his wife, this little-known art museum features works by Picasso, Monet, Renoir, Cezanne, and more.

An informal walk of fame in front of a Hollywood office building remembers a comedic great and his associates.

The oldest structure in a beachside California city was built to serve eight students.

Home of the "Father of Forestry."

Two groundbreaking brothers from Pasadena.

The façade of this building looks like a bingo board, but it's really a giant clock by a famed graphic designer.

This house turned museum chronicles the life and work of Richard Neutra.

A British pub embodies the spirit of a California legend.

Drink a Guinness under the wings of Reagan's retired Air Force One in his presidential library.

The American Home, Re-imagined.

In one Santa Monica parking lot a mushroom cloud made of chains heralds a message of peace.

Honoring Italian greats from Joe DiMaggio to Rocky Marciano.

A Romanesque sanctuary of calm amid the bustle of downtown Los Angeles.

This quaint stretch of road is the final resting place for hundreds of America's four-legged veterans.

It was founded by Ralph Nader to educate the public about an often-maligned area of law.

The Southern California pop sounds of surf and sand were born right here.

A lonely Gondola stuck on a traffic circle sits in a spot where it once would have floated down the Grand Canal.