Robots, lasers, and whoopee cushions, oh my!

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

A unique botanical garden housed in three giant geodesic domes.

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.

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

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

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

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

Statue dedicated to the star of an old television show.

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

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

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

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

Vikings and Evangelicals have both had a hand in this replica medieval church.

The oldest continuously-operating tavern in Wisconsin used a clever loophole to serve alcohol during Prohibition.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

These crudely shaped folk giants may be the the second most photographed statues in the U.S.

Minnesota's oldest and deepest mine is now an underground physics laboratory.

Half of a waterfall goes into the river while the other half seems to disappear.

This picturesque cliffside beacon no longer calls to sailors but shines once a year in honor of a famous shipwreck.

This posh mansion began as a family's estate and ended as the site of a murder ripped from the pages of a pulp novel.

The watery grave of an impractical idea.

This rare vessel mixed luxury with labor before being converted to a museum and sometimes haunted maze.