The park is home to the United States's only still-operating Dutch windmill.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.

A living maritime paradox still floats in the same lake where it was built and resurrected... or was it?

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

A science teacher's dream.

This statue of Olympic hockey coach Herb Brooks immortalizes one of the greatest moments in American sports history.

Secret hideaway for an alternative beach experience.

Inside this museum resides a boot fit for a giant.

Sculpture garden and miniature golf course blend together in the oversized backyard of a Minnesota sculptor.

This picturesque cliffside beacon no longer calls to sailors but shines once a year in honor of a famous shipwreck.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

Find out what it sounds like when doves cry at Prince's recording studio estate turned museum.

This large midwestern cavern features impressive rock formations and an underground waterfall.

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

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

A hot dog stand where the heads are just as hot as the dogs.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

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

A hollow cement depiction of time's inexorable effect on the human body.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

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

To find the "unicorns of the deep" you've got to go downstairs.