A small town market proudly displays numerous taxidermied animals along its walls.

European castle ruins in an American state park are actually the product of death and grief.

A geological oddity formed by two rivers carving out a mass of limestone on both sides.

This majestic tree has survived 400 years of storms, droughts, and floods, and is a beloved natural landmark in Missouri.

Like Stonehenge, but with boats and oodles more charm.

This wooded grove of beautiful hand-built stone grottos is a hidden gem within a shuttered Franciscan monastery.

Giant granite rocks standing end-to-end like a train of circus elephants.

In the St. Francois Mountains in the Ozarks at 1,772 feet above sea level, Taum Sauk Mountain is the highest (and possibly oldest) peak in Missouri.

Once an ambitious nature spa, these forest ruins now provide a serene monument to failure.

This century-old roadside attraction is full of bizarre rock formations.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

The Ozarks' strangest dwelling.

Twenty-year effort to raise a castle using tools and techniques from the 13th century is now abandoned in the Arkansas woods.

An abandoned early-20th-century boomtown sits within the Calico Rock city limits.

The final remnant of the Arkansas zinc industry is this historically protected ghost town.

A mysterious light floating in the trees of Arkansas may be a piezoelectric effect.

The strange and snarky traditions of the lumber industry's fraternal order began with five men waiting for a train here in Arkansas.

A spring-fed pool so deep it's used for scuba diving as well as swimming.

A prison-like structure guards the remains of a notorious Old West outlaw.

Natural catch-basin rocks covered in thousands of drawings spanning many millennia.

The Grand Canyon of Texas.

This water tower slanted at an uncomfortable angle off the old Route 66 was an ingenious marketing ploy.

Once in disrepair, this popular Texas stop along iconic Route 66 has been restored to its past glory.

One believer transformed a local curiosity into proof of Vikings on the Great Plains.