This giant tower beacon was a key navigation tool for pilots delivering mail amid the night skies.

This underground cave located in the most barren reaches of Idaho is filled with ice year-round.

This work of art by Matthew Mazzotta resides in this park dedicated to the first black legislator in Idaho.

New Plymouth, Idaho is the only U-shaped town in the United States.

This combination shop and museum is filled with curious items and artifacts.

Where the famed daredevil attempted to launch himself across a canyon in a custom-built rocket.

Tucked away on a scenic trail, a modest memorial honors one of the greatest writers of our time.

Three generations of intrepid collectors display their curious artifacts in a homemade museum right next to the caves they discovered.

This historic Idaho island is home to a strange timeshare museum, a homemade mini-golf course, and an outhouse named Aunt Fanny.

Supposedly Satanic numbers adorn this preserved submarine sail.

The secluded site of a 1943 plane crash and amazing rescue is only accessible by hiking through the woods.

This landmark is a central figure in the Nez Perce origin story.

A creek tumbles over a series of step-like rocks to create this scenic water feature.

This highest peak in Idaho can only be reached by traversing a formation known as "Chicken-Out Ridge."

These falls, sometimes called the "Niagara of the West," still put on a good show at the right time of year.

Birdhouses, peacocks, animal sculptures, and a graveyard are all found along this eclectic nature trail.

These century-old beehive-shaped kilns were built to produce charcoal for nearby mines.

An Idaho legend carved out a cave village with his own two hands.

This set of hot springs also comes with fantastic views.

A museum dedicated to the history and art of staying clean.

It was once used as a classroom to teach mining skills to local high school students.

After this former brothel closed, its interior remained almost frozen in time.

The mayor made the declaration in 2004.

Home to a timed geyser created by complete accident.