The mayor made the declaration in 2004.

The largest outdoor art gallery in the Northwest United States.

A wild west land agreement was etched right onto this historic Idaho stone.

A few dilapidated structures are all that remain of this deserted former silver mining town.

Jail from the 19th century that was built by inmates.

A petroglyph map of the upper Snake River carved by prehistoric hunter-gatherers.

A former gold rush boomtown has managed to stay in business for over 100 ramshackle years.

Despite his legacy of work in Spain, Cuba, and Florida, the larger-than-life writer's grave is a simple affair tucked in an Idaho cemetery.

A legal loophole makes it possible to get away with murder within this 50-square-mile section of Yellowstone.

Sweet Willy, at 30 feet tall, is the world's biggest beagle.

These black pillars of volcanic basalt seem to call mountain climbers with an unbreakable siren song.

When in Idaho, sleep in a giant potato.

This museum glorifies the humble potato.

See just what life was like in a 19th-century prospecting town.

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

Home to the deepest rift anywhere on Earth.

The rockpile was the founding landmark for the town of Gillette, and is now the home of the region's history.

One of America's largest retail chains got its start in one of its most remote rural destinations.

This canyon is named for a unique geologic formation where the river vanishes underground near the mouth of the canyon and reappears farther down.

Mark Twain once stopped at this rest station during his journey to Nevada.

It is the only marker for one of the most famous hate crimes in American history. There are no other memorials for him in the entire state.

An antique Beechcraft airplane serves as a giant windsock for people driving through the blustery open country of eastern Wyoming.

The only retired U.S. nuclear missile silo that is open to the public.

This town is home to the world’s largest arch constructed entirely of elk antlers.