air defense, Egypt

"What is this bizarre structure found in the Egyptian desert? UFO hunters speculate after strange building is spotted on Google Earth"
DailyMail

"Mysterious Structure in Egypt : Almost 700,000 Views and NO Answers?"
4archeology.info

hi!
this is my first post on the military board, and only can hope it is not off topic here...
browsing comments on pages linked below i believe these must be some kind of military bases, however the unique shapes of these facilities still not the very best clear by me...
edit: some Archduke guy on LiveLeak says: "those are S-300 GTAM bunkers", and shows another example from Libya, shot taken by Swedish Air Force. (B/W aerial photo attached)

i have collected locations mentioned by commenters of the below linked pages.
at least by one base, radar equipment can be seen so i would give my vote to the air defense version rather than to the UFO one.

DailyMail article states, one of the sites were spotted first by some secureteam10 guy (at least they posted it) on YouTube.

other followers on the web:
4archaeology.info , LiveLeak



air defense Egypt.kmz (1.12 KB)

S300 GTAM bunker, Libya

photo by Swedish Airforce
(all stated by Archduke via LiveLeak)