An authentic Dutch windmill, built in the Netherlands and shipped to Wisconsin.

The museum houses one of the world's largest collections of glass paperweights.

This solitary gravestone is separated from the rest in Appleton, explaining why local legends continue to surround it.

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

A museum celebrating the self-taught artist-environment builder.

Whimsical sculptures dot a woodland path surrounding their creator's old summer cottage.

This whimsical sculpture garden is a local treasure.

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

These modest Midwestern formations are kin to Niagara Falls' impressive cliffs, more than 600 miles away.

The tunnel that runs beneath this former inn was once a hiding place for enslaved people seeking freedom.

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

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

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

A forgotten Cold War relic hidden in the outskirts of a Wisconsin city.

Complex aquaponics systems allow fish and plants to grow in harmony.

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.

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

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

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

Literally a million fascinating cartographic artifacts are held in this sprawling university collection.

A circus of light and sound forms a sensory ode to an iconic train that will never pass through town again.

A wonderfully curated used bookstore in an airport.

This holy goods emporium is where priests go for a little retail therapy to outfit their churches.