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

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

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

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

A bedazzled house and crown "jewel" of outsider artist Loy Allen Bowlin.

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

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

This cave holds a surprisingly colorful variety of geological oddities.

Software company Epic Systems has created one of the strangest and largest workplaces of all time.

"World's largest scrap metal sculpture" stands in an outdoor sculpture garden in the middle of Wisconsin.

The final resting place of one of Thomas Jefferson's formerly enslaved sons.

Amateur taxidermy museum known for its large collection of white squirrels.

A bronze plaque marks the site of the only show the "King of the Soul Singers" ever missed.

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

The remains of a enormous earthen figure of unknown origins cuts across a rural Wisconsin road.

A stone marker memorializes the spot where the King broke up a street fight with a classic karate stance.

Faces carved into the cliffs create an otherworldly walking trail.