Underground (Military?) Installation in Saudi Arabia
Northwest of Arar, along the border, there is this sizable tunnel going into the Earth. Whatever it is, its a big deal, as seen from the kilometer long structure immediately to the south. Curiously, most of the houses in at least a twenty kilometer area were clearly torched shortly before the image was taken in mid-2010. Evidence of fire damage can be seen at thousands of civilian homes, suggesting that something pretty serious happened in this area, and perhaps the mystery tunnel has something to do with all of these torched buildings.
Let me know what you think!