Urfa shares the Balikh River Valley region with two other significant Neolithic sites at Nevalı Çori and Göbekli Tepe. The city originated circa 9000 BCE as a PPNA Neolithic site located near Abrahams Pool (Site Name: Balıklıgöl). It was part of a network of first settlements spanning West Asia where agriculture began. It was here that the life-sized limestone "Urfa Man" statue was found during an excavation and is now on display at the Şanlıurfa Archaeology and Mosaic Museum. The Urfa Man resembles both carvings at nearby Gobekli Tepe and statues found at 'Ain Ghazal. The village at Balıklıgöl was followed by a string of four PPNB villages on four hilltops at the Gürcütepe site. Beginning in 6200 BCE small Halaf culture villages began to appear in the Balikh Valley. The typical Halaf village is 2ha with a population of 500 people surrounded by agricultural fields. By 5000 BCE the entire valley was densely filled. Two of these villages would become the nuclei for the major cities of Urfa and Harran.