A wonderfully curated used bookstore in an airport.

One of the largest aviation events in the world brings half a million aircraft enthusiasts to Wisconsin each year.

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

A museum devoted to the victims and the survivors of the most catastrophic fire in American history.

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

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

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

A restaurant and lodge in northern Wisconsin which served as a clandestine hideout for John Dillinger and featured one of the most famous botched FBI raids in history.

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

This cave holds a surprisingly colorful variety of geological oddities.

Robots, lasers, and whoopee cushions, oh my!

A bizarre house filled with an astounding array of collections.

The oldest certified bowling alley in the United States is in the basement of this century-old bar.

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

A unique botanical garden housed in three giant geodesic domes.

An oddly poignant roadside attraction celebrating American folklore.

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

Statue dedicated to the star of an old television show.

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

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

A large circus museum with summer performances.