In the town of Hattushash, 150 km from Ankara, Turkey, a number of holes can be seen in stone slabs:
Slabs laid with holes drilled along their edges. Or they were left by something at the stage of pouring this rock (concrete or geo-concrete?). The method of obtaining these holes is a separate topic, we will not touch on it in this article.
The holes are made at a strictly defined frequency. Even between blocks, this distance is respected.
The rock is crumbling, but the holes can tell us why they were made and what kind of stone blocks they are! Why were they laid?
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It can be assumed that these holes are fastening blocks through metal pins. That through them a curb was fastened along the edges of the stone path.
Researcher Alexander Koltypin made his assumption in the following analogy:
Ancient holes are analogous to fixing our fences in asphalt and concrete. The ancient fence is not eternal, but the holes from it remained. It doesn't have to be a metal fence. It could also be made of wood as the easiest to manufacture.
Perhaps there was something like this:
But there is one subtlety. In order for the fence to stand firmly, not to tilt - the pillars must be concreted or firmly driven in. I do not exclude that they were stuck into cast blocks.
Or they stuck wooden posts like this.