Want to learn more about the ancient site of Gobekli Tepi? Here at How old is Civilization.com we provide Information about the ancient site of Gobekli Tepi. This wondrous site is located in southern Turkey and was discovered by a farmer. This ancient site of Gobekli Tepi is well preserved for its age and thought to be the oldest known man-made religious structure in the world. It has been dated to 10,500 B.C. If you would like to learn more about Gobekli Tepi.click here.