Aerial view of Darabgird, a circular city located in southern Iran, 9km south-west of modern-day Darab. It was thought to have flourished in the Sasanian period of the third to seventh centuries AD. The main structure of the city consists of the following elements: • circular fortifications comprising a rampart, ditch and other related features; • route systems, consisting of four gates and four main streets; • residential zones, the four areas are enclosed by the four main streets; • a government citadel, located on high ground at the centre of the city; • an irrigation network (an artificial channel has been located).
