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In page Slavonski Brod:

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The Brod Fortress from the Baroque period, was constructed during the Austro-Hungarian Empire to serve as a stronghold against the Ottoman Empire, which was situated on the other bank of the Sava river. It is in the Vauban style, named after one of the best European experts in the building of fortifications in 17th and 18th centuries. It is one of Europe's best preserved fortresses, and also one of the biggest on the former Austro-Hungarian Military Frontier. In a way, it is the continental obverse of Diocletian's Palace in Split, by its monumentality.[citation needed]