Petrovaradin Fortress, Belgrade (Serbia)

Petrovaradin Fortress nicknamed Gibraltar onof the Danube is a fortress in the town of Petrovaradin itself part of the City of Novi Sad Serbia. It is located on the right bank of the Danube river. The cornerstone of the present-day southern part of the fortress was laid on 18 October 1692 by Charles Eugne de Cro. Petrovaradin Fortress has many tunnels as well as 16 km of uncollapsed u

Serbia 21000
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