You'll need to bundle up if you'd like to welcome the official start of winter at the Cahokia Mounds. The winter solstice sunrise observance will take place at 7 a.m. Sunday at the Woodhenge site ...

Further excavations and DNA testing will attempt to determine who built this circle, and whether they were related to the builders of sites like Stonehenge and Woodhenge. Further excavation ...

The ancient North American city of Cahokia had as its focal point a feature now known as Monks Mound, a giant earthwork surrounded on its north, south, east and west by large rectangular open areas.