http://www.youtube.com/watch?v=25sYTt_z2nA The immense effort required to erect the large stone circles 12,000 years ago and then bury them a thousand years later provokes speculation that Gobekli Tepe and stone circles, pyramids and ziggurats on this planet could be self-activating machines left behind by non-human intelligences that have terraformed Earth for millennia.
Ground-penetrating radar shows there are some 300 more standing pillars in eighteen still-buried rings underneath 95% of the hill that has not been excavated. Compounding the mystery is soil compression evidence that about a thousand years after its creation, all of the Gobekli standing pillars were buried. Did the makers have knowledge of impending danger?
Linda Moulton Howe produces reports and edits the award-winning science, environment and Earth mysteries news website, Earthfiles.com.