Sardinia, Tomba di Giganti 4
http://slicer93.mbsrv.net/20130113203959.jpg
The image shows the view seen from the back side.
When I regard the tall stone like a mountain, I thought it was similar to the vision of the relics of Iran which came to my mind.
Naqsh-e Rustamin in Iran(wikipedia)
“Semicircular mountain is densely covered with pebbles(Minanoko=small groups of atoms).
A part of it looks like the relics, but pebbles multiply on it.
There is a terrace in front of one hole of relics.
There are low stone masonry on both sides and there is the stone arch in front.
There are gradual irregularities below it where a baby can sleep on it.
Eventually the stone wall of this side begins to collapse."
When I saw this relics, I found Stone gods of Iran were able to make more advanced relics and it seemed they were made by the help of Sirius.