[cloudmountain]

It is in fact a fact that the area was a rain forest at one time, it was about 10,000 - 12,000 years ago.... the wind currents changed and dried the area out..

10,000-12,000 years ago? Well that is EVEN before the Egyptian civilization.
There is nowhere on the Internet that says that. You must have read that in a book. [A WHAT?!?!--oh yeah, a book! :o)]

"Wind currents" wouldn't have dried up an area that large anyway. I believe your book had some other place in mind. That area has been desert forever.

[stockpirate]

Is that why the Sahara has the bones of prehistoric sharks and whales?

There are lots of places on the net that covers what I mentioned.....

There is also a belief that the blocks used were concrete and were poured in place.

[stockpirate]

We better not even mention Gobekli Tepe......