Stari Grad Plain is since 2008 UNESCO protected as the largest cultivated field in the Adriatic practices virtually unchanged since 4th centuy BC. The plain demonstrates the comprehensiv of agriculture used by the ancient Greeks. The land was divided into geometrical parcels( chora) bounded by dry stone walls. The system included a rainwater recovery system involving the gutters and storage cisterns. The original field layout has been respected by the continuous , using use of enance of the boundary walls by succeeding generations.