Mačva is a geographical and historical region in the northwest of Central Serbia, on a fertile plain between the Sava and Drina rivers. The chief town is Šabac. The modern Mačva District of Serbia is
The Pannonian Basin, or Carpathian Basin, is a large, mainly lowland area in southeastern Central Europe, briefly described as a sedimentary basin. It was the core territory of the historical Kingdom
The Carpathian and Pannonian Basins
The Danube-Tisa-Danube Canal near the village of Rumenka, close to Novi Sad