Everywhere on our planet we encounter majestic megalithic structures - traces of long-vanished cultures. It seems that they were created according to a single plan. And everywhere, be it Mexico or Colombia, Spain or the south of India, unknown astronomers of the Stone Age erected giant chronometers measuring eternity. Who were these thinkers, these initiates, who managed to exert a truly enormous influence both on their era and on such a distant future ? What motivated them, prompting them to build such colossi? Erich von Däniken in his sensational book states: the Stone Age was completely different from what is commonly believed, based on traditional scientific ideas about the development of our civilization.