Wadu Rum - Rupestral Engravings - In Wadi-Rum, It Is The Wind That Throughout The Millennia Has Eroded The Rocks, Thus Creating The Picturesque Landscapes With Reddish Sands. Already Inhabited In Prehistoric Times; As Witnessed By The Finds Of Stone Tools Dating To The Paleolithic And Neolithic Periods , This Great Valley Was Roamed For Millennia By Hunters And Nomads, Who Left Interesting Traces Of Their Passage .Most Of These Are Graffiti , Rupestral Engravings Both On The Rocks And Rock Walls And Inside Natural Caves , Presumably Ranging In Time From The 4th Millennium BC Up Almost To The Present . Photo