See the computer’s history revealed over the course of 20,000 years.

The ghost town that ended up on Ebay.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Towering basalt columns, a creation of fire and ice.

Famously misunderstood wonder of the ancient world

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

America's most famous piece of self-built architecture.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

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

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

The fairy tale castle of the "fairy-tale king."

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Oldest building in California still in use.

A 19th-century Baja cantina that many say is the birthplace of the margarita.

This historic tower in the California desert promises visitors a "vortex of good vibes".

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

San Diego's most historic and haunted home.

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

North America's largest accredited model railroad museum.