Prudnik Castle was located in the defensive bend of the Prudnik river. It was built in 1255. It was founded a Czech knight Wok of Rosenberg.
The castle was destroyed in 1428 by the Hussites. After the end of the first Silesian War, Frederick the Great rebuilt the castle.
A fire on 27 August 1806 burnt the entire castle except of one tower called 'Wok's Tower', which is now the only remnant of the castle.
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The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.