Not so long ago – around 900 AD – one of the largest, most sophisticated societies lived in southern Illinois. They had complex political and religious systems. They were many in number. And just like that, they disappeared. So what happened? Clues to the story can be found at the place they once lived: Cahokia Mounds.

Related Stories

7 Waterfront Retreats In Illinois That Are Perfect For Warm Weather Adventures

7 Waterfront Retreats In Illinois That Are Perfect For Warm Weather Adventures

This Incredible Flower Road Trip Through Illinois Is The Ultimate Spring Adventure

This Incredible Flower Road Trip Through Illinois Is The Ultimate Spring Adventure

Go Glamping In Illinois In Your Own Yurt For An Unforgettable Adventure

Go Glamping In Illinois In Your Own Yurt For An Unforgettable Adventure

Have you been here before? What did you think? Here are more things to do along the Mississippi River.

OnlyInYourState may earn compensation through affiliate links in this article. As an Amazon Associate, we earn from qualifying purchases.