Hegra (Mada'in Salih) in Saudi Arabia was the Nabataean kingdom's second capital after Petra in Jordan, and the rock-cut tombs of both cities come from the same 1st-century world.
This route follows the Nabataean caravan network from the Hegra tombs through Humeima and Little Petra to the Treasury and Monastery in Petra, and ends at Avdat on the Petra-Gaza road in the Negev.
Assassin's Creed Mirage is set in 9th-century Baghdad, with the Round City and the House of Wisdom, and stops at Anbar, Alamut and al-Ula. Street thief Basim Ibn Ishaq becomes a Hidden One hunting the Order of the Ancients amid the Anarchy at Samarra.
The route follows him from the ruined town of Anbar to the mountain fortress of Alamut, through the districts of Baghdad and on to the oasis of al-Ula. Little of the Round City survives and the House of Wisdom is gone, so those pins are approximate; the Iraqi stops are for reading, not visiting.