For many decades now, historians have been haunted by the phenomenon of Cyclopean buildings of Ancient Egypt, Mesoamerica, and Celtic Europe. How and for what purposes were these incredible structures built, which are impossible to replicate even at the current level of development of technology and engineering? To explain this phenomenon, many researchers, out of desperation, try to use the theory of aliens visiting the Earth or justify the existence of other fantastic creatures like the almighty Atlanteans. However, the American historian Edward Malkowski, who carefully studied all the hypotheses and versions dedicated to ancient megalithic structures, came to an unexpected conclusion: it is not at all necessary to look for a prehistoric supercivilization on other planets or at the bottom of the ocean. It is enough to take a closer look at some regions of the globe, the history of which, it would seem, has been studied far and wide... A significant part of the information concerning the most ancient human supercivilization is hidden in oral traditions and mythical legends. Using the latest data from archaeology, genetics and geology, as well as sacred religious texts. Malkowski proves that mythical legends are based on very real historical events.