10 Ice Age Structures That Shouldn't Exist

10 Ice Age Structures That Shouldn't Exist In nineteen eighty-nine, a drought pulled back the waters of the Sea of Galilee and exposed something that had been sleeping on the lakebed for twenty-three thousand years. Six oval footprints pressed into the sediment. Not caves. Not windbreaks. Structures, with prepared floors, central hearths, and evidence of a door. The site was called Ohalo II, and the moment archaeologists began to understand what they were looking at, the comfortable timeline of human development quietly began to crack.