During the 1990's nearly all of the world's LSD is thought to have come from the operators of the lab once located in this missile silo.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.

A wonderful collection of all things Oz is nestled in the heart of Kansas.

Home to Hollywood history and a very special salt crystal.

A unique attraction and museum dedicated to exploring iconic roadside structures.

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

A museum, walk-through diorama, and library nestled under one castle-like roof.

An impressive collection of farm equipment and other artifacts from life on the prairie.

Known as "The Hill of the Little Devils."

This sculpture gallery is home to magnificent beasts made of scrap metal and found objects.

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

An entire city block built completely out of petrified wood.

This Wild West attraction is alive with glitching automatons.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

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

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

A fitting attraction for the corn capital of 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.

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.

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.

This giant fiberglass cod celebrates Madison's self-proclaimed status as the U.S. capital of lutefisk.