ancient stone beehive tombs with jebel misht mountain in the background, archaeological site near al-ayn, sultanate oman

jebel misht al ayn alayn ancient arabian archaeology asia attraction bat beehive tombs building burial civilization culture desert excavation grave gravesite group heritage landmark masonry middle mountain mystical necropolis nomad oman omani oriental prehistoric preserved rocks round ruin sightseeing site stone structures sultanate tomb tower travel unesco visit wadi