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

This forgotten beach house built to look like a Frank Lloyd Wright masterpiece overlooks a hidden beach.

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

A unique botanical garden housed in three giant geodesic domes.

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

Statue dedicated to the star of an old television show.

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

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

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

The Bong-area park police have asked visitors to please, stop stealing the signs.

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

Behind a modern brick exterior lies the oldest continuously-operating lunch-car diner in the United States.

See where Bill Murray kidnapped a hapless Punxsutawney Phil.

Arguably the best example of an authentic Dutch windmill in the United States, rivaling its counterparts in the Netherlands.

This house renovated by Frank Lloyd Wright was the centerpiece of a lavish 20th-century estate.

World's second largest particle accelerator, where nature reveals its secrets.

A tribute to one granddaughter's old apartment which now represents the whims of each visitor.

The oldest functioning restaurant in the state of Illinois, operating since 1847.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

A six-story-tall golden pyramid, surrounded by a moat.

A river with some unusual, and occasionally dangerous, habits.

Odd castle-like structures for collecting water sticking out of the Mississippi River.

Less a museum than a bizarre fantasy world created by artists and engineers.