What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

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

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

Complex aquaponics systems allow fish and plants to grow in harmony.

A hundred-year-old museum filled with giant physics toys and experiments designed by grad students.

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

143 feet of leaping muskie whose mouth can be used as a wedding venue.

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

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

The menacing creature had a tremendous influence on the local culture before being exposed as a hoax.

A tribute to the twin ideals of religion and patriotism, built by a Catholic priest from rocks, glass, and innumerable found items.

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

A large circus museum with summer performances.

"Iron Age" creatures fill this huckster's rusted metal sculpture garden.

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

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

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

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

A bizarre house filled with an astounding array of collections.

An enormous park-like oasis, full of famous Chicagoans' graves.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

"World's largest scrap metal sculpture" stands in an outdoor sculpture garden in the middle of Wisconsin.