Built by the Mississippian culture, these mounds date back to 900 AD, serving as ceremonial centers.
An effigy mound representing a serpent, constructed around 1070 AD by Native Americans.
Built by the Hopewell culture around 100 AD, these geometric earthworks are impressive in scale and precision.
This site features ancient mounds and a stockade built by the Middle Mississippian culture around 1000 AD.
Dating back to around 1000 AD, Moundville was once a major center of the Mississippian culture.
One of the oldest mound complexes in North America, dating back to around 3500 BC, constructed by hunter-gatherers.
These mounds were built by the Mississippian culture around 1000 AD and served as a major center.
Part of the Cahokia Mounds complex, it's the largest prehistoric earthwork in the Americas, built around 900 AD.
These mounds were constructed by the Plum Bayou culture around 650 AD.
These mounds were built by the Mississippian culture around 1000 AD and were a major center of trade.
Built around 1700 BC by a hunter-gatherer society, these earthworks are a UNESCO World Heritage Site.
Built by the Mississippian culture around 1050 AD, this site features ceremonial mounds.