9. Moundville Archaeological Park (Alabama)
Moundville Archaeological Park, located near Tuscaloosa, Alabama, was a major Mississippian-era city between 1000 and 1450 AD. The site features 29 platform mounds arranged around a central plaza, serving as foundations for elite residences and ceremonial structures. Moundville was a significant political and religious center, with a population estimated between 1,000 and 3,000 people within the city walls and an additional 10,000 in the surrounding valley. The park includes an interpretive museum and hosts an annual Native American Festival. (Encyclopedia of Alabama)
