Amman Governorate, Jordan
Desert castle built sometime before the early 8th century AD. The purpose of this building is still unclear- the building's internal arrangement does not suggest a military use, and slits in its wall could not have been designed for arrowslits. It could have been a resting place for traders, but lacks the water source such buildings usually had close by and is not on any major trade routes.
Location of Qasr al-Kharaneh