Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

Rare recess caves fill this unbelievably beautiful Ohio park.

Illegal drag racing two stories beneath Chicago’s streets.

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

Years of archaeology, just chillin' by the water cooler.

A curious collection of miniatures in a quiet corner of the Chicago Children's Museum.

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

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

This enchanting forest trail leads to ethereal abodes and a giant bird's nest.

The largest ancient burial mound in Ohio.

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

In this relatively flat state the highest point is an honored place.

Turnip-shaped island just off the Michigan shore in Lake Huron.

World's largest Christmas store.

Deep scars on the earth left by the Ice Age.

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

To truly appreciate Detroit's landmark skyscraper, you have to step inside.

The world’s largest Masonic temple was saved by the White Stripes.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

The only surviving prototype for Buckminster Fuller's house of the future.

Little did a museum know, they possessed the last-known lunch wagon in existence.