The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

This Italianate Villa-style castle is pretty to look at, just keep off the private property.

One of few surviving standpipe water towers in the U.S.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

Famous church recognized for both its unique design and disciplined monks that live according to the Benedictine discipline.

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

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

A late sculptor's last project was to turn this abandoned cement factory into a castle-themed amusement park.

Stand at the point where the two mightiest rivers in the United States converge.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

An abandoned meat mecca now serves as an excellent locale for urban exploration.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

At 431 feet and 10 inches, this is the longest historic covered bridge in the United States.

The overgrown remains of one of the premier auto-racing speedways in the Midwest—and also one of the most deadly.

Display that gathers the basic elements of the universe in one convenient location.

This mysterious hill seems to pull objects uphill.

Inside, ancient treasures. Outside, modern contradictions.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

A ship that lived many lives under many names is now known merely as the "Ghost Ship."

Visitors to this Kentucky homestead turned museum are immediately transported back to the Antebellum south.

Hidden on two floors of downtown building, the library has an incredible deal on rent.