Qasr Usaykhim
Zarqa Governorate, Jordan · built 100
Qasr Usaykhim or Qasr Aseikhin, is probably a Roman fortlet on the extreme eastern edge of the Limes Arabiae et Palaestinae. The solitary outpost would thus possess one of the most spectacular sites of all Roman forts in Jordan. The ruins of the structure are located on the crest of a volcano in the Syrian Desert, Zarqa Governorate and about 18 km northeast of the town of Azraq, overlooking the wadi and allowing vegetation to grow.
Monument data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).