The oldest extant wooden jail in South Dakota and possibly the United States. 

The cliff and rock formations are made out of Sioux Quartzite.

The lowest point in South Dakota and the source of the Minnesota River.

A relic of roadside lore and perhaps the first of its kind in North America.

The final resting place of the Hunkpapa Lakota leader Tatanka Iyotaka, commonly known by the English translation Sitting Bull.

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

Known as "The Hill of the Little Devils."

Chef Lawrence West serves up Indian tacos, wojapi, and other Lakota dishes at the brick-and-mortar incarnation of his popular food truck.

One of the world's most definitive collections of musical instruments, spanning all cultures and historical periods.

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

A cemetery housing wild west legends in South Dakota.

An entire city block built completely out of petrified wood.

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

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

One of America's first dinosaur parks gives a window into Depression-era paleontology.

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

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

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

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.

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

Just a man taking his prehistoric pet for a stroll.

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

The world's largest Holstein cow.