Fort Ancient Earthworks, located in Ohio, USA, is a remarkable Native American cultural site. Constructed over 2,000 years ago by the Hopewell culture, it is the largest prehistoric hilltop enclosure in the United States. Recognized for its historical and cultural significance, Fort Ancient has been inscribed on the UNESCO World Heritage list as part of a serial nomination of Hopewell Ceremonial Earthworks. This site, which was once a bustling center of ceremonial and social gatherings, offers visitors a unique glimpse into the ancient past through its museum, trails, and preserved earthworks.