Norderburg is a moated castle that was established in the 14th century. It was destroyed in 1514 during the Saxonian rebellion and rebuilt in 1534 by Hicko Kankena.
The castle's architecture is quite impressive with a beautiful facade, flanked by two lion statues at the entrance, an ornately designed Knight's Hall, and a spectacular great hall that features baroque paintings. The castle changed many owners and was also used as a private school, and later as a college. Since 1951, it is home to a middle school.
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.