Göbekli Tepe is one of the most impressive prehistoric megalithic monuments in the world on account of its great antiquity (10th and 9th millennia BC; making it some 6000 years older than Stonehenge, 7,000 years older than the Great Pyramids), the number and sophistication of its limestone megalithic buildings, the shape of the stones, the breath-taking imagery found carved and engraved on many of the stones and the exceptional T-pillars found on the site. Furthermore, the imagery from Göbekli Tepe provides unprecedented insights into the worldview and belief systems of prehistoric populations living in Upper Mesopotamia some 11,500 years ago, a time which corresponds with one of the most momentous transitions in human history, one which took us from hunter- gatherer subsistence to (modern) farming lifeways, also referred to as Neolithization. For this reason, Göbekli Tepe stands out as one of the most exciting and significant prehistoric sites in the world.