Gobekli-Depe ancient settlement in the center of the Merv oasis. Gobekli survived four major periods of his existence 1) The time of erection of the building is earlier than 1 century CE. 2) Parthian time 1-2 centuries CE. 3) Early Sassanian time 3rd century. 4) 4th century layer (Judging by the found coins of the Sasanian king Shapur II 309-379 and the Kushanshaha Varahran II end of the 4th century).