Mada'in Saleh (Cities of Salih) | en.wikipedia.org/wiki/Sali… | Flickr
Hegra (Mada'in Salih) - Wikipedia
Mada'in Saleh - Arabian Rock Art Heritage
L'Arabia Saudita ha la sua Petra, si chiama Mada'in Salih - Easyviaggio
Mada'in Salih, Saudi Arabia. It was the second biggest city of the Nabatean kingdom, after Petra. Remains include 131 rock-cut monumental tombs, with their elaborately ornamented façades. : r/travel