Šternberk Castle was mentioned first time in 1269 and it was built decaces earlier. It was later altered in Renaissance style but suffered damages in Thirty Years War.
Around the year 1700 the estate was bought by Jan Adam Ondřej of Lichtenštejn. The Lichtenštejns owned the castle till the end of the World War II and also realized the last big reconstruction. The reconstruction did not only give the castle todays appearance, but also the first floor was opened for public as a museum due to it. Lichtenštejns lived on the second floor, but only till the end of the World War II.
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.