***what kind of material the pillars are made from***
Dunno. But if it keeps going, and going, and going,...
maybe the worlds largest batteries.
What I am saying is that this is all new information from all new technology. It will need substantive verification by other means. I mean, the ancient Egyptians building heavy construction two kilometers below ground level. And remember that underneath those pillars are two huge blocks to support them.
Maybe Giorgio A. Tsoukalos can straighten all of this out.