Niš Fortress

Niš Fortress (Serbian: Нишка тврђава / Niška tvrđava) is a fortress in the city of Niš, Serbia. It is a complex and important cultural and historical monument. It rises on the right bank of the Nišava River, overlooking the area inhabited for longer than two millennia. It was protected by law in May 1948 as it was declared a cultural site of great significance. The current condition of the fortress lists it as one of the best preserved fortifications of this kind in Serbia as well as on the Balkan Peninsula.

• http://en.wikipedia.org/wiki/Niš Fortress