Thanks, Civ
Well, that’s one reasonable use of google earth.
We went to the Metropolitan Museum of Art in NYC last weekend and saw a wonderful exhibit Early Egyptian art from the pre-dynastic period (before the Pyramids) 4000 BC to the period of the Pharaohs.
What has already unearthed is most likely a small fraction of what remains to be discovered.
and check out these:
http://www.googleearthanomalies.com/Anomalies/LinearFeatures/tabid/84/Default.aspx