Valley of the Whales (Wadi El Hitan) is now desert, but 40 million years ago, it was covered by the ancient Mediterranean Sea. About 400 fossilized whale skeletons have been found there. The rock formations are the result of erosion by sand and wind.
In western Egypt near the Libyan border is Siwa Oasis. This picture is taken from the top of the fortress of Shali with Siwa Town below and palm trees and the Sahara Desert in the distance.