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

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

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

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

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

A roadside collection of over-sized iron creations that are a bit more macabre than most.

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

Just a man taking his prehistoric pet for a stroll.

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 world's tallest turtle riding the world's largest snowmobile.

On the windswept Dakota plains there is a memorial to circus workers who were struck down by lightning.

This museum is a full-size replica of an original church constructed during the 13th-century.

One man's quest to save his town with a trail of record-breaking sculptures.

The formidable fowl can be found standing near an isolated hiking path.

"Polynesia on the Plains."

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

This angular Dwarven tunnel cuts through a mountainside in Glacier National Park.

An impressive waterfall nestled in the cliffs of Idaho's Snake River Canyon.

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.

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

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