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

Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.

Who said a biker bar is no place for a taxidermy squirrel collection?

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

A celebration of the animation wizard's childhood home and antique railroad memorabilia collection.

A small town garden is dedicated to a psychic dog with the most soulful eyes.

This museum located in the "Corn Cob Pipe Capital of the World," chronicles the history of cob pipe.

This Mediterranean castle was built for a millionaire and his giant dog.

The only pig museum in the U.S. holds one of the world's largest collections of pig items.

This pristinely abandoned filling station on the edge of a graveyard is populated solely by unsettling mannequins.

This museum presents a dogged pursuit of 500 years of veterinary history.

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

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.

Come for the heirloom-corn whiskey, stay for the wood hats.

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

The obelisk meant to mark the founding father's grave at Monticello is actually on the University of Missouri campus.

Two Ming Dynasty lion statues guard the entrance to the journalism school.

The iconic remains of the original Academic Hall that burned down in 1892.

The modest, restored home of the legendary ragtime musician John William "Blind" Boone.

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

A gem in the small Missouri town where Winston Churchill coined the term "Iron Curtain" and effectively began the Cold War.

The cell which saved the life of Ludger Sylbaris, "the man who lived through Doomsday."

This mysterious runestone embedded in a church wall is linked to the medieval cult of Saint Erik.