Mining town from the late 1890s, once home to Calamity Jane.

A brick-paved former section of the historic coast-to-coast highway.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

Two massive rock outcroppings on the Oregon coastline.

A beautiful 62-acre Catholic shrine and botanical garden.

An extensive collection of ancient Egyptian artifacts and mummies.

Historical trolley restoration and operation at History San Jose, Kelly Park.

A mysterious monument covered in a binary code marks the heart of tech.

Eat a tasty meal in the house where John Steinbeck was born.

The oldest lighthouse on America's west coast no longer needs keepers, yet they maintain the site anyhow.

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

An old whaling station now serves to give the public a look at the commercial whaling industry, no longer a part of Monterey's economy.

This remarkably simple jail went over a century without an escape.

Haunting and beautiful trees, doomed to die.

This cabin from the 1850s is one of the first structures built by Chinese immigrants in California.

A ruined hotel with an unlucky history and an eerie present.

Gold Rush ship-turned-hotel buried underneath San Francisco's financial district.

Legend says train robbers stashed their gold within the depths of this unusual cave.