Guardians Like Geometry, but all diagrams I've seen so far are in 2D. This is a Metatron Cube overlaid over the top of the site - I don't quite have the scale exactly on, and I think by virtue of how we take screenshots and planetary curvature that it warps slightly, but this seems to fit the site:
Interesting how many default artefacts and obelisks groups sit on lines or intersections. I suspect that the "archways" are meant to indicate intersections, which doesn't quite line up on my screenshot (unless I draw it by hand obviously) but using some of the maths calculations previously and recognising that the shape we're effectively looking for is this one:
http://i.imgur.com/OwCwCD7.jpg, if the centre of the site is Sol (as previously suggested) and Section A is the current ruins site, we should be able work out two (or four?) locations for Section F if it represents a galactic map.
Tin Foil hats ahoy!
Z