United States Illinois Collinsville

Cahokia Mounds State Historic Site

An ancient Native American city near Collinsville, IL, with massive earthworks, including a prominent 100-foot pre-Columbian mound.

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Cahokia Mounds State Historic Site holds the remains of the largest pre-Columbian city north of Mexico. As a World Heritage Site in North America, this significant archaeological site reveals the ancient culture of the Mississippians who built and thrived there from 700 to 1400 AD. Visitors can discover the impressive earthen mounds, plazas, and sacred structures while learning about the fascinating history of the Mississippian civilization.

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Cahokia Mounds State Historic Site Guides

  • World Heritage Sites in North America

    seeker (Seeker Editors)
    Sprawling natural parks with unique wildlife, ancient and mysterious temples, world-renown monuments, and more- the continent of North America is one with a deep history to be uncovered. Explore some of humankind's most famous mysteries and witness nature's magnificence at these UNESCO designated world heritage sites across the massive continent.