JUST OUTSIDE ST. LOUIS, VISITORS can witness the monumental earthen mounds that mark Cahokia, the largest indigenous city north of Mexico. There’s a persistent myth that the original inhabitants of what is now the United States were all hunter-gatherers living in small communities. Yet these mounds—likely used for ceremonial and housing purposes by people of the Mississippian Culture—reveal an often-neglected history: an organized, socially diverse, Pre-Columbian city.
Read more at Atlas Obscura. Photo: Adam Dutton/Unsplash