Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

All of Chicago's wood-paved streets are long gone but two alleys remain.

A monument to the art of slicing people open.

This 30,000 square-foot museum is home to an extensive collection of art and artifacts that reflect the history of southwest Ohio.

Inside houses a vast collection of military aircraft and missiles spanning the ages.

This magnificent Cincinnati graveyard is also a popular public park.

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

The largest earthwork effigy in the world.

A castle built by an eccentric medieval enthusiast in rural Ohio.

Restaurant in Northern Wisconsin comes with a unique feature: a grassy roof covered in living goats.

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

According to the legend, this strikingly beautiful hill has miraculous healing powers.

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

Every winter, the wind carves blocks of frozen water into beautiful abstract shapes inside this unusually curved tunnel.

Giant six-pack could provide one person a six-pack a day for 3,351 years.

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

Walk up a ramp through a forest for panoramic views of Lake Michigan.

A group of artists transformed this desolate city alleyway into an outdoor gallery of street art.

One of the last surviving C-97s sits in a field in front of a Wisconsin inn.

A bypass decorated with large wooden troll carvings.

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

An off-the-beaten-path place to literally hang beneath Milwaukee's Holton Street Bridge.