"Pyramids"

Ruedi
MemberOvomorphMay 03, 2012782 Views4 RepliesWhen Prometheus is landing we can see at least four domes on the ground. Presumably Prometheus crew visits first of them, which contains hidden derelict ship.
Are there more ships in other domes then? If yes, is the whole planet some kind of base and why would Engineers/SJs leave clues on Earth that lead to this place? Could humans come across other races that came to this place for similar reasons? What do you think?