Göbekli Tepe site during excaviations. Photo by Klaus-Peter Simon (2012). CC BY-SA 3.0. Source: “Göbekli Tepe” (2020). In: Wikipedia. The Free Encyclopedia. May 13, 2020 800 × 533 Göbekli Tepe site during excaviations. Photo by Klaus-Peter Simon (2012). CC BY-SA 3.0. Source: “Göbekli Tepe” (2020). In: Wikipedia. The Free Encyclopedia.