- This is the oldest temple unearthed anywhere on this planet.

(soaring inspirational music) It was built 11,500 years ago by hunter gatherers.

That's 6,000 years earlier than Stonehenge.

And yet somehow our ancestors were capable of making this.

(soaring inspirational music continues) This is Göbeklitepe.

(soaring inspirational music continues) Incredible T-shaped pillars which you could imagine would've been holding up a huge roof.

And then if we look at them, they're covered in these engravings.

So this is a fox, there's vultures here, there's bear, there's wild boar.

And here, this one just has to be my favorite.

And look at these incredible teeth, and it's hunting one of those wild boars.

And yet this incredible feat of architecture is not the most revolutionary thing about this place.

Göbeklitepe is not simply a temple.

It is a marker of a species in the midst of change.

Similar sites have been found across the region.

(soaring inspirational music continues) In many ways, these prehistoric builders lived as their ancestors had for thousands of years.

Their days spent foraging and hunting to feed their families.

(arrow swooshing) (animal grunting) (soaring inspirational music continues) But they'd made one fundamental change.

After thousands of generations spent as nomads following the herds they hunted (soaring inspirational music continues) at places like Göbeklitepe, they began to settle down.