The origins of Hrušov castle are not known, but it was probably built after the invasion of Tatars around 1253. From 1321 to 1344 it belonged to the family Levické and then became a royal property. In 1347 King Louis I of Hungary gave it to the governor Hrušov. The castle was destroyed by the Imperial army in 1708 and is in decay since then. However, its surviving walls induce a romantic atmosphere and provide a nice panoramic view.
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.