1The Cahokia Mounds, USA

Located near Collinsville, Illinois, the Cahokia Mounds are the remains of the largest pre-Columbian city north of Mexico. At its peak around 1100 AD, Cahokia was home to tens of thousands of people—more than any other U.S. city until the 1800s. 

The city’s centerpiece, Monks Mound, is a massive earthen pyramid that rivals those in Mesoamerica. The civilization behind Cahokia disappeared mysteriously, and scholars still debate its social structure, spiritual practices, and sudden decline. With no written records, Cahokia remains a haunting reminder of a sophisticated society lost to time.

Next

RELATED ARTICLESMORE FROM AUTHOR