It does not look like a molecule to me.
If it was molecule related, I would guess it would be trying to represent the interstices (or holes) of some sort of closed-pack sphere model; of something in the shape of a icosahedron, such a B12.
But really to me, it looks like some sort of interwoven Kaleidocycle's ala M.C. Escher, transposed on top of a picture of some old European location.
*shrugs*