One dedicated priest constructed this beautiful stone grotto by hand from 1926-1933.

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

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

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

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

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

Once a speakeasy operated by Al Capone, this Milwaukee cigar bar is now a haven for ghost hunters.

A private home collection of more than 3,500 cat figurines.

Robots, lasers, and whoopee cushions, oh my!

"Looks so real, it's scary!"

Duluth mineral magnates built this charming art deco lodge to be their private clubhouse.

Admire the art and then buy a raccoon skull cleaned by flesh-eating beetles.

An unusual assortment of art, furniture, and other curiosities.

The basement bowling alley of this St. Paul dive bar is decorated with thousands of dollar bills.

The Real LegoLand.

Come for the giant taxidermy lion, stay for the knick knacks at this Minneapolis curiosity shop.

One of two giant blue cockerel statues erected with an intentional double meaning.

Find out what it sounds like when doves cry at Prince's recording studio estate turned museum.

Sculpture garden and miniature golf course blend together in the oversized backyard of a Minnesota sculptor.

This secret gem of a toy store houses a rideable carousel populated with fantasy animals.

A curious sculpture garden and museum in Cochrane, Wisconsin.

This punny mirror of another Wisconsin attraction is exactly what it sounds like.

Hidden in magnificent rolling countryside, see what may be the largest modern stone circle in the world at Wisconsin's very own "Stonehenge”

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