One of the most sacred sites for local Native American culture to this day, the 17ft-tall, 223ft-wide ceremonial and political temple mound, built with 500,000 basket-loads of earth and representing what is probably the largest prehistoric earthwork on the Gulf Coast, dates back to somewhere between AD 800 and 1500. On top of the mound you'll find a re-created temple, which houses a small exhibition center.
The museum offers an extensive overview of 12,000 years of Native American history, and houses flutes, ceramics and artifacts fashioned from stone, bone and shells, as well as a comprehensive research library.