Abdanan, ruin of an ancient Parthian city

 

From what I understand, the Parthians were basically a nomadic culture from the steppes east of the Caspian Sea which superficially adopted some elements of the Hellenistic culture that the Macedonians under the Seleucid dynasties were then imposing on the Iranian peoples.  Could this have been a bone of contention between them and their subjects?  The architecture here is kind of like that of the Roman west, with those rounded archways, but it's hard to tell how much so in the state that it's in.