Cahokia Mounds
The remains of the largest city in North America north of Mexico around 1100, with a ten-story earthen mound to climb.
The museum partly reopened in 2026 after long renovations. Check what's open.Checked November 2, 2026
- Open
- Grounds daily; check the website for the museum
- Price
- Free; donations welcome
- Time Needed
- 2 hours
- Address
- 30 Ramey St, Collinsville, IL 62234Google MapsApple Maps
- Getting There
- About 15 minutes by car east of downtown, in Illinois.
Why Go
Mississippian people built more than 100 earthen mounds here, and the city may have held 20,000 people. Climb the 154 steps of Monks Mound for a view to the Arch. It's a World Heritage Site.
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