u/DodonaFrequency

While researching the theater of Dodona in Greece, I came across these photographs by Greek researcher Spiros Aslanis.
What caught my attention is the repeated horizontal layer / band visible on multiple stone seats. In some places it almost looks like a separate material or an added layer between sections of the stone.
I’m not presenting this as proof of anything unusual I’m genuinely curious whether archaeologists, restorers, or stone experts have an explanation for this visible pattern and texture.
Could this be part of an ancient construction technique, later restoration material, natural stone behavior, or something else?
Photo credits: Spiros Aslanis.

These photos were taken near the ancient Oracle of Dodona, at Mount Tomaros in Epirus, Greece.
From several different angles and under different lighting conditions, the mountain appears to form a human-like face looking over the valley.
Some locals describe it as a “guardian” of the oracle, while others simply see a striking natural rock formation.
I am curious whether others can see it too — especially the eyes and facial outline formed by the mountain’s relief.
No editing has been made to the mountain itself.