One of just a few cities in the world to base their center of government on an island. Others: Paris and Osaka.

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

This pebble beach is so beautiful that taking its rocks is against the law.

Remnants of a quarry company town still stand on the banks of the Wapsipinicon River.

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

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

A bizarre house filled with an astounding array of collections.

Tour the luxe "glass cage" that inspired and unnerved the architecture world upon its debut.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

This historic hotel invented the chocolate brownie.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

A lush green oasis in the middle of Chicago.

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

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

One of Frank Lloyd Wright's final works was this UFO church.

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.

Statue dedicated to the star of an old television show.

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