A kitschy, creepy St. Louis mainstay.

The oldest bar in Missouri is hidden within a limestone brewery cellar more than 50 feet underground.

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

A subterranean haunt where wine and homemade biscottis are always on the menu.

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

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

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

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

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

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

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

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

This abandoned prison castle has become an imposing gallery of graffiti art.

Less a museum than a bizarre fantasy world created by artists and engineers.

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

The oldest active juke joint in the state sustains a niche school of blues guitar.

A parade of interactive nostalgia nestled within a giant brick building in downtown Hattiesburg.

This humble hole-in-the-wall is home to an incredible pig ear sandwich and serious civil rights history.

Instead of becoming a power plant, this abandoned complex became a massive letdown.

A dramatically eroding canyon thousands of miles from the desert.

A 200-year-old bar is all that remains of one Mississippi River town's rough-and-tumble past.

One of the few existing, fully functional Showbiz Pizza animatronic shows.

A four-hour holy-rolling, Hallelujah-shouting, Southern gospel service, rendered as a country market where "All Is Welcome, Jews, and Gentiles."

Built following the War of 1812, this fort has withstood hurricanes for centuries.