Like Stonehenge, but with boats and oodles more charm.

A 35-foot-tall fork stuck in the ground outside an office building in Missouri.

This historic cliffside mansion uses a natural cave for air conditioning.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

The world's largest collection of fine-scale miniatures and one the nation's largest collections of antique toys.

A mysterious light of unknown origin on the backroads of Missouri.

The maximum security facility was once thought to have "the bloodiest 47 acres in America."

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

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.

A creepy sculpture of a decapitated head invites viewers to see St. Louis through its empty eyes.

This is not your typical jungle gym.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

Erosion and time have created a naturally-formed water park.

The world's largest man-made underground caverns offer unparalleled underwater wonders.

Curious cave that stays a cool 56 degrees all year long.

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

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