Mada'in Saleh, Al Madinah region, Saudi Arabia. Ancient Lihyan and Nabatean city with 131 monumental rock-cut structures, built since approximately 6th century BC. Photo: Jawad Roumi
Mada’in Saleh, Al Madinah region, Saudi Arabia. Ancient Lihyan and Nabatean city with 131 monumental rock-cut structures, built since approximately 6th BCE. Photo: Jawad Roumi
Mada’in Saleh, Al Madinah region, Saudi Arabia. Ancient Lihyan and Nabatean city with 131 monumental rock-cut structures, built since approximately 6th BCE. Photo: Jawad Roumi