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

A mining town, now abandoned, was built in a canyon so narrow that the railroad ran right through the hotel lobby.

This trail leads to a mine that was used as a sanctuary during the Great Fire of 1910.

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

A black cottonwood gets a second life as a home for books.

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

A huge musical instrument played by the ocean.

A fine, large-aperture telescope available for public use.

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

An extraordinary mixture of natural beauty and man-made phenomena.

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

Cave carved out of a huge snow drift collapsed killing one and injuring five in July 2015.

Train debris from the deadliest avalanche in United States history can still be found in the ravine where so many perished.

The site of the Wellington avalanche, one of the America's worst railroad disasters.

Twin Peaks' real life Double R Diner has been restored to its damn fine television look.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

A short hike into the mountainside forest reveals a decaying 1890s town.

A bust of the first president welcomes visitors to the only town in America called George, Washington.

This metallic stampede sits frozen on a Washington ridge yet the artist's vision is still incomplete.

An exercise in patience and imagination, where Mother Earth turned common stuff into precious hidden treasures.

Perhaps the world's only gas station inspired by a political scandal.

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

Nuclear reactor created the plutonium used on Nagasaki.

A 1940s nuclear reactor built to produce plutonium for the Manhattan Project.