The winter solstice sunrise observance will take place at 7 a.m. Sunday at the Woodhenge site at the Cahokia Mounds.

Cahokia Mounds is the largest archaeological site in the Americas north of Mexico. 80 mounds remain from an original tally of 120.

The many mounds that dotted Cahokia were used as burial sites, some for mass graves. Archeologists have stumbled upon a few that contain evidence of ritualized human sacrifice.

Cahokia Mounds State Historic Site, once the home of one of the great cities of medieval times, is now a grassy oasis in a gritty industrial neighborhood in Metro East.

There's a new way to explore an ancient place in Illinois. Visitors of Cahokia Mounds State Historic Site can try experiencing it in "augmented reality," or AR, to see the Grand Plaza as it ...

Massive mounds in western Illinois at the site of the ancient city of Cahokia tell us about the lives of North Americans many generations ago.

Cahokia was also not a typical city of the time, driven by commerce. Instead, what brought people to Cahokia was cultural, spiritual and celebratiorial reasons.

The Cahokia represents the largest settlement of "Mississippian" culture, which in Southern Illinois grew to a population of tens of thousands by maintaining huge agricultural operations.