A collection of huge, site-specific sculptures sitting in the Montana woods.

A collection of 16,000 antlers crammed beautifully into a small shed.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

This beautiful ancient site is dotted with perforated sandstone pillars considered sacred by some Native American groups.

"Polynesia on the Plains."

With over 340,000 artifacts and counting, there is something for everyone, often called the "Smithsonian of the West."

A rapidly disappearing glacier filled with extinct grasshoppers, perfectly preserved in the ice.

A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.

Known as "The Hill of the Little Devils."

This monument remembers one of the manliest men of the frontier who fought a grizzly before dragging himself 200 miles to safety.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

This geodesic gallery holds a collection of painted spheres that make traditional canvases look lazy by comparison.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

A place where the laws of nature seem to have gone completely berserk... but of course haven't.

This replica stave church looks like a piece of Norway was simply plopped down in South Dakota.

Just a man taking his prehistoric pet for a stroll.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The largest outdoor art gallery in the Northwest United States.

Rare and gorgeous birds abound in this protected wildlife sanctuary.

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