800 apricot trees honor Silicon Valley's agricultural history.

The haunting ruins of Jack London's dream house.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

This defunct Champlain Oil service station harkens back to the early days of automobiles.

It took years to decode its mysterious messages.

Beneath a Virginia City bar is the entrance to an abandoned gold mine.

The Empire Mine is "one of the oldest, largest, deepest, longest and richest gold mines in California."

The headquarters of the semiconductor giant has a 10,000-square-foot museum.

A hidden three-foot-wide house separates these two regal churches.

A herd of 150 bison live on California's Santa Catalina Island and are at the heart of an ongoing debate between environmental protection and economic expansion.

This 252 step staircase offers stunning views of San Jose.

The oldest house in the capital of Silicon Valley.

Three plaques mark the spot where the "forgotten father of broadcasting" worked.

At the base of the Golden Gate Bridge, a small sign basically begs for a high-five.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Once the gateway to the utopian dream-village of a Civil War embalmer.

Social saloon from a scrapped trans-Pacific 19th century steamer.

Today's aerospace industry can be traced back to one man and his gliders.

The fossilized remains of ancient California redwoods.

This historic Victorian hotel has a scandalous history of affairs and murder.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

The tallest waterfall in the Judean Desert is named for its connection to a biblical figure.

The original place where water met land in the City by the Bay is outlined in brass.