A few iconic structures are all that remain of America’s first outdoor shopping mall.

Don't bother sending any mail to this ghost town.

A replica of the first public theater built in California.

An enchanting tunnel of cypress trees leads to an old morse code station still used today.

This collector's home is a constant work in progress.

Two pillars set 10 paces apart commemorate the "last notable American duel."

Standing in for the first ship to navigate the Northwest Passage.

This eagle-topped spire remembers the military commander who snatched up California for the United States.

The first high-tech company in the valley that actually worked with silicon devices.

A unique piece of graffiti offers a little slice of local history and mystery.

A landmark for a trailblazer for female architects and the designer of one of the most famous and opulent buildings in California.

A mesmerizing disco ball-like sculpture along the Sacramento River Walk.

Where the first "expert riders, willing to risk death daily" for the Pony Express were recruited.

A simple plaque remembers a California island massacre that claimed more than 100 lives.

Its dark depths conceal millions of rare, delicate crystal formations.

View the California coastline (and the home of Barbara Streisand) inch by inch with stunning, government-sanctioned aerial photography.

An abandoned car and strange wooden debris are among the scattered remains of the old sand and gravel quarry.

One of the largest Marian shrines on the West Coast stands rather unexpectedly in Silicon Valley.

Two groundbreaking brothers from Pasadena.

This Taoist temple is the oldest continuously used Chinese temple in California.

A water tower shaped like a giant coffee pot looms over a small Swedish village in Central California.

It is locally loved and ridiculed for literally looking like poop.

The final resting place of the songwriter who penned “Take Me Out To The Ball Game."

A plaque outside the San Jose airport commemorates the insect's arrival to the West Coast.