Over time, this castle grew to encompass the entire island.

Unruly residents were housed in this one-person cell until the Black Maria arrived.

A wall of chewing gum moonlights as collective art.

An homage to Jackie Gleason's bus-driving character from 'The Honeymooners.'

The final resting place of the author who gave us the Little Mermaid, the Ugly Duckling, and many more beloved fairy tales.

Beyond the usual stories that attend old prisons, this one has deep bloody undercurrents.

The world's largest Holstein cow.

The crumbling structure is a rare surviving relic of the area's bygone mining industry.

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

An antique Beechcraft airplane serves as a giant windsock for people driving through the blustery open country of eastern Wyoming.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A cemetery housing wild west legends in South Dakota.

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

Every president in history is immortalized in bronze in downtown Rapid City.

Calidum et Deliciose Succosum!

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

This woodland architectural installation acts as a camera obscura for the heavens.

The metal spire on the roof of this tower was intended as an airship docking station, but it was never actually used.

In 1911 this intersection was called "the heaviest corner in the South," and outlandish claim that only grew wilder over the years.

Classy up your Big Mac with bow-tied servers and chandeliers at the world's fanciest McDonald's.

Once one of the largest producers of pig iron in the world.

This residence straddles a border between Belgium and the Netherlands.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

Come for the pizza, stay for a performance on the world's largest theater pipe organ.