Twice a year, this road is closed off to allow for the migration of thousands of snakes, reptiles and amphibians between cliffs and a swamp.

Designed by Alfred Caldwel, this landscape showcases his vision of a native garden.

The remnants of Peoria's proud baseball past stand slightly abandoned, but not forgotten.

This lush 12-acre site was once named the finest Japanese garden in North America.

This national park dedicated to the tallgrass prairie ecosystem still displays its military past.

Tucked away amongst townhomes lies a restored, early 20th-century tea house and garden, the only remains of a historic estate.

In a grove of fast growing walnut trees outside Paris, Illinois, a marker shares the story of a fictional road building culture.

A collection of 11 million buttons illustrates the human toll of the Holocaust.

It was originally part of a "terrible lizards" collection at the 1964 New York World’s Fair.

An abandoned observatory in the middle of the Illinois prairie.

Planes, trains, and automobiles have all been sunk as attractions at this Illinois diving spot.

This tiny historic jail along Route 66 is the perfect fit for exactly one criminal and their partner-in-crime.

This cemetery is all that remains of a school for "wayward" girls.

A historic and oft-filmed prison stands in a Chicago suburb.

Its eclectic exhibits range from the world’s first motorcycle to Luke Skywalker’s Land Speeder.

No one knows how many bodies are in this vault in a Chicago public park.

A plaque marks a former safe house on the secret route, now hidden next to a McDonald's.

This historic-shipwreck-cum-diving-spot can still be seen poking its boiler out of the Lake Michigan waters that claimed it.

This urban drawbridge gained eternal pop culture fame when the Blues Brothers jumped it while it was raised.

In the loving memory of a tragically deceased role-player this Illinois park is decked out with both dungeons and dragons.

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

In the Shawnee National Forest, amazing rock formations peer through the treeline.

A small abandoned and abused cemetery that has become a magnet for ghost hunters.

Eclectic collection of rare and beautiful stones in a historic home.