Witness remains of the most sophisticated prehistoric native civilization north of Mexico by visiting the Cahokia Mounds Historic Site. The mystery of this ancient metropolis, which was inhabited from about A.D. 700 to 1400 when the site was abandoned, remains unsolved. 800 acres of the original 2,200-acre site is open for the public to explore, in addition to a World-Class Interpretive Center. Take a guided tour or traverse the mounds yourself.
Cahokia Mounds State Historic Site
30 Ramey Steret
Collinsville, IL 62234