A ghost town at the airport is now a refuge for blue butterflies.

The oldest U.S. Government building in California, and it's State Historic Landmark #1.

The oldest continuously operating church in California.

A newspaper building that made radio history.

An outdoor sculpture park of giant pink robots and post-apocalyptic Christmas scenes.

One of Hollywood’s favorite government buildings.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

Miniature art that tells an enormous story.

This private residence was the template for one of the most beloved television homes of all time.

This municipal playground was co-created by the father of one of the most playful characters ever.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

Inspiring Earthlings to Boldly Go.

An Airy Would-Be Solution to a Housing Shortage.

Former 1954 Del Mar Train Station now serves signature cocktails and delightful culinary treats, and still operates as a Metro stop.

Where the rich wintered in Pasadena.

Two groundbreaking brothers from Pasadena.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

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

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

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

St Bernard de Clairvaux Episcopal Church, better known as one of the oldest European buildings in the Western Hemisphere.

A vast array of tropical plants collected by a vacationing couple.

An eccentric home stands out in an otherwise average neighborhood with mosaics, mini topiaries, and kinetic sculpture.