Erich von Däniken explains that advanced extraterrestrial species helped ancient ancestral civilizations build stone monuments which tracked the periodic movements of the heavens. Remnants of these stone-age astronomical megaliths can be found with Stonehenge, the dolmen in French Britany and Gobekli Tepe, just to mention a few. Our forefathers in the stone age adored the night sky, but the little twinkling lights in the curtain of night were a profound mystery to them. As they found patterns in the movements of the stars and planets, they built monuments to track these arrangements. But they were not alone, as they had help from another world to construct and align massive stone structures. This presentation was originally webcast September 20, 2017.