18 Mar 2015 | From Vlatka of Croatia
Sisak is a city in central Croatia located at the confluence of the Kupa, Sava, and Odra rivers. It is the administrative centre of the Sisak-Moslavina County, Croatia's biggest river port and a centre of river shipping industry. Sisak is a regional economic, cultural and historical center. The largest oil refinery in Croatia is located here.