Schloss Weinberg is an Upper Austrian castle complex and is located on the vineyard above the village of Kefermarkt in the Mühlviertel. The first castle in this location was built in the 11th century. The conversion into a Renaissance castle was made by Hans Wilhelm von Zelking in 1600. The Thürheimer bought the property in 1629. After becoming almost uninhabitable in the early 1980s, Upper Austria rented the castle in 1986 for 99 years, the renewed and organized in 1988 a national exhibition on the premises. Since 1989 the castle has been used as a regional music and education center.
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.