Forty-six kilometers from Gobekli Tepi, another set of monumental carvings made by hunter-gatherers 13,000 years ago have been discovered.

It's extraordinary.

See:
Is an unknown, extraordinarily ancient civilisation buried under eastern Turkey? | The Spectator

"Iam staring at about a dozen, stiff, eight-foot high, orange-red penises, carved from living bedrock, and semi-enclosed in an open chamber. A strange carved head (of a man, a demon, a priest, a God?), also hewn from the living rock, gazes at the phallic totems – like a primitivist gargoyle. The expression of the stone head is doleful, to the point of grimacing, as if he, or she, or it, disapproves of all this: of everything being stripped naked under the heavens, and revealed to the world for the first time in 130 centuries.Yes, 130 centuries. Because these penises, this peculiar chamber, this entire perplexing place, known as Karahan Tepe (pronounced Kah-rah-hann Tepp-ay), which is now emerging from the dusty Plains of Harran, in eastern Turkey, is astoundingly ancient. Put it another way: it is estimated to be 11-13,000 years old."