Kosava castle is a ruined neo-Gothic castle built in 1830 by Graf Wandalin Puslowski. It is near the palace where Andrzej Tadeusz Bonawentura Kościuszko was born. The architect of the castle was Frantisek Yascholda. The ruined castle is similar to a replica of Tadeusz Kościuszko's house in Merechevschina. After the collapse of the January Uprising in 1863, ownership was transferred to the Trubetskoy family and other Russian aristocrats. During World War I and World War II, the place was severely damaged. Currently, the castle is in the process of restoration.
References: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.