Above is the Mount Elephant in Ula.
A walkway through the sacrifices area right after the meeting place just at the right handside of the pic.
The above is inside of one of the tombs at Madain Saleh.
Madain Saleh, also known as al-Hijr, is one of the best known archaeological sites in Saudi Arabia. Madain Saleh was once inhabited by the Nabataeans some 2000 years ago. The Nabataeans are of Arab origin who became rich by their monopoly on the trade of incense and spice in particular between the East and the Roman, Greek and Egyptian empires. Madain Saleh has about 130 dwellings and tombs that extend over some 13 kilometers.