tourist walking in the hegra archaeological site, madinah, al-ula, saudi arabia

saudi arabia hegra archaeological site alula jabal albanat historical unesco necropolis madain salih medina hejaz world heritage nabataean nabatean tombs saleh ancient city madinah tomb rock cut architecture archaeology history culture desert sand stone monument tourism tourist travel destination exploring walking adventure discovery landscape scenery nature outdoors sunlight daytime blue sky summer no people woman