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

"The House That Love Built" is shying away from "The House That Ghosts Love."

An obscure waterfall that looks like something out of a fantasy novel.

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

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

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

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

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

When in Idaho, sleep in a giant potato.

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

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

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

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

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

Home to the deepest rift anywhere on Earth.

Remember that scene in the Matrix, when Neo is in the big white room with all the weapons flying by? Well, this is what it would look like if he had wanted trees instead of guns.

This 80.33 troy ounces of solid gold is believed to be the largest nugget from Oregon still in its original form.

The unique circular corral belonging to the “Cattle King” of Oregon.

The only house in Oregon designed by the famous architect, Frank Lloyd Wright.

A bronze replica of half-consumed salt lick honors a quirky town tradition.

This Portland shop is brimming with natural wonders, local art, and handmade goods fashioned from recycled materials.

At the base of Steens Mountain resides an otherworldly desert.

This large maar crater in Oregon is the bigger brother to Hole in the Ground.

A sprawling cave network created by a lone lava tube.