Wadi Rum, known also as the Valley of the Moon, is a valley cut into the sandstone and granite rock in southern Jordan, near the border with Saudi Arabia and about 60km to the east of the city of Aqaba.
With an area of 720 km2 it is the largest wadi (river valley) in Jordan and as this video by Harmen Hoek shows, it's an incredible place to walk.
Several prehistoric civilizations left petroglyphs, rock inscriptions and ruins in Wadi Rum. Today it is a tourist attraction, offering guided tours, hiking and rock climbing. The Wadi Rum Protected Area has been a UNESCO World Heritage site since 2011.
Enjoy this 25min video. It's beautifully made.