Kozelj
Koželj lies in the Timok country near Knjaževac, amid the hills of the eastern Balkans. The surrounding region contains traces of settlement from prehistory through Roman and medieval times. The local museum lists Koželj among its ancient and late antique sites, while the history of Knjaževac also names a medieval fortified place there. The Timok valleys connect this upland country with the Danube basin farther north.