ancient bedouin inscriptions in khazali canyon, wadi rum

anfashieh wadi rum desert jordan khazali canyon bedouin inscriptions close up ancient rock art petroglyphs history archaeology nomads cultural heritage 2000 years old stone carvings middle east sandstone culture travel geology landmark mysterious script jordanian exploration natural civilization engravings surface outdoors adventure historic preserved unesco world site traditional antique protected area reserve tourism panorama arabic valley of the moon