Serbia - Golabac Castle Ruins.jpg
The ruins of Golobac Castle are just upstream of the "Iron Gates" on the Serbian side of the Danube. It was built ~14th century and, like most of the Balkans, passed between Turks, Bulgarians, Hungarians, Serbs, and Austrians. It was finally ceded to Serbia in 1867.
2014Danube CruisingIron Gate