The deepest spring in Missouri.

Often referred to as the largest spring in America.

Away from the crowds of fishing enthusiasts, take a hike deep into the woods and journey into an eerie darkness.

This mansion was made famous by its colorful cast of owners and location along the Sante Fe Trail.

A wax effigy of St. Valentine hides one of the saint's relics.

During the 19th-century, this park was a vital trading fort.

The crumbling remains of the first Black-owned and operated hospital in Kansas City.

Undone by Prohibition, this abandoned brewery-turned-flour mill is now ready for its third act.

Another in a long tradition of legends regarding infernal seats.

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

A piece of John the Baptist in the American heartland.

An urban forest overtakes what was the greatest failure of utopic urban housing.

The ruins of a 19th century shelter run by the Independent Order of Odd Fellows.

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

A remarkably opulent mansion with a tragic history.

The house where the famed outlaw was shot by a dirty coward is now a museum to the criminal's legacy.

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."

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

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

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

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

The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

Home of mutant livestock.