posted on May, 11 2011 @ 05:13 AM
Looking at the last picture ...
I'm thinking those are vehicle lift elevators.
From my time in architecture, I don't see
any indication that parking is intended
around the top. And it looks like
vehicles should drive inside.
The central roof casts a single/two story shadow,
but has a raised square in the middle like an elevator house.
The surface texture of the surrounding round part is also very interesting.
Looks almost like solar panels. To go way out on a limb, perhaps this is for
tanker trucks that go down and fill up water from rivers deep underneath the desert.
p.s. upon reflection I think my guesses are terrible.
edit on 11-5-2011 by davidgrouchy because: (no reason given)