Over thousands of years, this slot canyon was carved out of the bed of an ancient lake.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

The menacing creature had a tremendous influence on the local culture before being exposed as a hoax.

A restaurant and lodge in northern Wisconsin which served as a clandestine hideout for John Dillinger and featured one of the most famous botched FBI raids in history.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

Dakota legend claims this locally iconic pinnacle was once part of a sacred burial site that was cleaved in two.

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.