This mosaic-covered bar is brimming with curated curios.

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

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

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.

This is not your typical jungle gym.

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

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

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

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

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.

A unique blue and yellow phone booth in America's "Little Sweden."

The Bucyrus-Erie model 1850B electric shovel, or "Big Brutus," the largest existing electric shovel in the world.

A 20-foot-tall egg painted in a traditional Czech patterns by the Czech community in Wilson, Kansas.

The magazine keeps a perfectly groomed display garden for its photo shoots.

The World's Largest Bull.

A hidden barn-sized rendition of Grant Wood's most famous, and most parodied, painting.

A four story, football field-sized, nine-grotto creation made of shells, minerals, and rare stones.

A rim-made reptile in North Dakota.

The world's tallest turtle riding the world's largest snowmobile.

Part of a secret 1970s nuclear defense program is now open to the public.

A true roadside icon standing on the same plains that the herds once roamed.

One man's quest to save his town with a trail of record-breaking sculptures.

The remnants of an early American attempt at missile defense.