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

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.

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.

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

A unique botanical garden housed in three giant geodesic domes.

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

This quirky museum has a collection of more than 15,000 bobblehead dolls.

Six tiny houses built for working class people form the largest intentional cluster of Wright homes anywhere.

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

The spaceship-like theater, which is still in use, was one of the most popular exhibits at the 1964 New York World's Fair.

Wisconsin's most celebrated export gets the royal treatment on I-94.

The birthplace of a titan of American cinema.

A trailblazing sovereign nation tucked in the American state of Wisconsin.

An outdoor urban gallery of large-scale artworks by the world's most influential street artists.

One Pittsburgh musician's decades-in-the-making memorabilia collection is on display at this rock-n-roll curio shop.

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

The last street in Pittsburgh that's paved with wood.

This Old Testament garden features 100 plants from biblical times.

Sections of the iconic limestone columns have been left uncleaned as a reminder of the city's polluted past.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

This plaque marks a place where one of Hollywood’s most famous dancers got his start.

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.