40 ton megaliths, carbon-dating shows that the complex is about 12000 years old, that means it was built around 10000BC. By comparison, Stonehenge was built in 3000 BC and the pyramids of Giza in 2500 BC. Gobekli is thus the oldest such site in the world, by a mind-numbing margin. It is so old that it predates settled human life. It is pre-pottery, pre-writing, pre-everything. Gobekli hails from a part of human history that is unimaginably distant, right back in our hunter-gatherer past. How did cavemen build something so ambitious? This is also near where Noah was said to have settled following the deluge that covered Atlantis.