The Tolštejn Castle (now reduced to ruins) was built in 1278 as part of the Zittau region's defense structure. George of Poděbrady ordered the castle to be seized shortly after the Hussite Wars and after many conflicts, the Tolštejn dominion was taken by 1471 by two Saxon princes, Ernest and Albrecht. During the Thirty Years War, the army of the Austrian Emperor occupied the castle. In 1607, the Swedish General Wrangel laid siege and burned down the castle.
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.