The site of an ancient Mississippian settlement that appears to have flourished during the 10th to 13th centuries.

This storied music venue was once a tavern that housed an Italian Anarchist book club and prohibition parties; today it's a community space for artists and musicians.

This missionary's legacy looms large over the Upper Peninsula of Michigan—literally.

A tragedy and memorial that raised awareness about the dangers of unsealed mineshafts.

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

This shallow pit was once used to send over 20,000 buffalo plummeting to their death.

A cemetery housing wild west legends in South Dakota.

An antique Beechcraft airplane serves as a giant windsock for people driving through the blustery open country of eastern Wyoming.

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

Just a man taking his prehistoric pet for a stroll.

The first declared National Monument in the United States.

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

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

This massive roadside mascot was the first version of the giant to illustrate his butt.

This large midwestern cavern features impressive rock formations and an underground waterfall.

The Bong-area park police have asked visitors to please, stop stealing the signs.

The city of Rockford, Illinois is symbolically protected by a quartet of fittingly stony sentinels.

According to the legend, this strikingly beautiful hill has miraculous healing powers.

A unique botanical garden housed in three giant geodesic domes.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

A large circus museum with summer performances.

Two hula hoops appeared on the tree after a storm, and the collection kept growing.

For just a few bucks, this Iowa funicular will let you feel like an 1800s fat cat.

One of the last surviving C-97s sits in a field in front of a Wisconsin inn.