In the southern part of Jordan, near Ras Al-Naqab, lies Humayma the base of the Abbasid Dynasty from where they planned their seizure of the Islamic Caliphate from the Umayyads.
Midway between Hejaz and Syria, on a hill located in Udruh between Ma'an and Shobak, lies Jabal Al-Tahkim or The Hill of Judication. It was here after the Battle of Siffin, that Abu Musa Al-Ashaari representing Caliph Ali ibn Abi Talib met Amr ibn Al-Aas representing Mu'awiyah ibn Abi Sufyan before a court of judgment.
Both sides had agreed to arbitration to decide their conflict. North of the city of Ma'an is a mountain named Jabal Al-Ashaari, where a shrine for Abu Musa Al-Ashaari is located.
On top of Jabal Al-Nabi Harun near Petra is the shrine of Prophet Harun 'Aaron' the brother of Prophet Musa 'Moses' . Allah responded favorably to the supplication of Prophet Moses to make Aaron his minister.
Prophet Moses left Aaron to act on his behalf when he went to interlocute with Allah , near Mount Sinai, after he had promised his people to produce them a Torah as their constitution and legal document.
Aaron predeceased Moses and his shrine's topography corresponds exactly with the traditional Islamic and Biblical accounts of Aaron's burial.
Aqaba hosts three interesting Islamic sites: Othman Mosque at Ayla built during the Caliphate of Othman ibn Affan , the Mamluk Fort, and the Castle of Salahuddin (Saladin) which is located on an island in the middle of the gulf.