Across the Southern Appalachian mountains, from Georgia up through North Carolina, hundreds of unusual stone structures have been discovered. Some date back hundreds of years. Some date back thousands. Archaeologists aren't sure who created these monuments. But the Cherokee people claim they know exactly who built them. The Cherokee say the structures were built by the Moon-Eyed people, a race of fair-skinned, light-haired, bearded humans. Their large blue eyes were so sensitive to the sun that they lived in caves and only came out at night. Which is why they're called Moon-Eyed.