Carnac's Megalithic Field of Stones
Truly one of the most puzzling megalithic sites in the world is a very large field containing over 3,000 monoliths weighing between 20 to 350 tons each, outside of the French village of Carnac. Carbon dating places some stones to be as old as 4,500 BCE during the Neolithic period. Many of the Carnac stones are arranged in different alignments, some of which accurately display mathematical concepts such as Pythagorean Theorem thousands of years before first documented by the theorem's discoverer, Pythagoras.
Mysterious inscriptions are found inside some of the Carnac dolmen that depict lined designs and shapes in clear patterns. Perhaps these carvings describe the field arrangement, purpose of the Carnac stones, or information about the builders themselves.