One of the largest aviation events in the world brings half a million aircraft enthusiasts to Wisconsin each year.

The property contains 37 preserved animal effigy mounds constructed by Native Americans between 800-1100.

This supper-club-turned-concert-venue still serves drinks at its original rotating bar.

The site of an ancient Mississippian settlement that appears to have flourished during the 10th to 13th centuries.

The city of Rockford, Illinois is symbolically protected by a quartet of fittingly stony sentinels.

A historic ballroom host to famous performers from the big band era to 1980s rock.

This lakefront cottage was crafted in the 1800s and was once a sanitorium.

The Bong-area park police have asked visitors to please, stop stealing the signs.

Wisconsin's most celebrated export gets the royal treatment on I-94.

The preserved remains of the former Milwaukee County Hospital for the Insane are hidden in the wooded grounds of County Park.

Six tiny houses built for working class people form the largest intentional cluster of Wright homes anywhere.

A unique botanical garden housed in three giant geodesic domes.

A factory in Milwaukee where poop is reclaimed… and recycled.

This was once the largest four-sided clock in the world (yes, even bigger than Big Ben).

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

This striking art museum holds an amazing series of curiosity cabinets.

A place to eat for on-the-run agents and espionage enthusiasts.

Statue dedicated to the star of an old television show.

Built in France in the 1400s, this gothic chapel now resides at Marquette University in Milwaukee, Wisconsin.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

A house and yard adorned with bizarre concrete sculptures in a Milwaukee suburb.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

A hidden gem that highlights the life and innovations of Les Paul, the "Wizard of Waukesha."