There was great fear that the ancient city of Hatra would be destroyed by ISIS in 2015 (see post below). Hatra was a part of the semi-autonomous kingdom of Hatra under Parthia. It is located about 110 km (68 miles) southwest of Mosul, Iraq. It was a fortified frontier city that repelled sieges by Rome under Trajan and Septimius Severus.
Fortunately, much of the city has been preserved. It is the best preserved Parthian city.