This former mining hub holds a surprising abundance of undisturbed relics from the Old West.

Natural rock water slides hidden in the remote forests of northern Idaho.

At the most northwestern point of the contiguous United States lies a trail leading through an ancient forest to stunning cliff-side vistas and massive oceanside caves.

Every drop of water in this 27-mile long reservoir was pumped up from the Columbia River using power from Grand Coulee Dam.

People come from across the globe to swim in this lake believed to have healing properties.

This large artificial waterfall in Washington state was merely an incidental byproduct of a technological megaproject.

Site of the greatest known waterfall that ever existed.

A cave interior in the shape of the ancient rhinoceros, created by lava cooling around its carcass.

This landmark church at the Flathead Reservation mission features 58 ceiling and wall frescoes painted by the mission's cook.

The only road through the heart of Glacier National Park.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

A whimsical roadside community of little metal people.

The Magical World of George Phar Legler.

This bomb shelter-themed bar has barely changed since it opened.

First Joe Pagac sculpture; sculpture reflects native Tucson wildlife in an urban setting.

A large spinning bath of liquid mercury, used to probe the early universe.

A frozen oasis lies beneath the scorching New Mexico desert.

Some 2,000 carvings show this rare desert spring has been an oasis for travelers for over a thousand years.

In the remote high desert of New Mexico, a strange array of poles beckon fury from above.

This Rocky Mountain mansion was the luxurious home of the authoritarian leader of a company town.

Make a wish at what might be America's only Catholic shrine to a sinner.

One of the oldest Mexican restaurants in the United States air-dries its trademark beef in a dangling outdoor cage.

Religious statues built because of one man's bargain with God fill this peaceful sculpture garden.

In Tucson a giant metal snake helps pedestrians cross a busy highway.