Today i was randomly on Azys La and noticed that there were two interesting areas, called ''the Acheduct'' in the Delta quadrant and ''the cathedral'' in the gamma quadrant.

What is interesting about them is the fact that their architecture being far difrent from what we know of the allagans.
''They could be allagan constructions before they got high tech!''

Yes it could, but i strongly believe it is not.
Here is a picture of the Acheduct: http://i.imgur.com/JvoCkJ9.jpg