The "Valley of the Whales", at the desert of Al Fayoum

People walk around the rocks in the natural reserve area of Wadi Al-Hitan, or the "Valley of the Whales", at the desert of Al Fayoum Governorate, southwest of Cairo, Egypt. Wadi Al-Hitan holds an impressive collection of fossils and bones, some of which date back over 40 million years. The entire site resembles an open-air museum with marked trails that visitors can follow to admire the fossils and rock formations that extend over a vast area.