Château de Carles was originally laid during the course of the Hundred Years’ War and the building took its current appearance in the early 15th century. It was owned by the De Carle family. In the 17th century, Château de Carles became a beacon for thinkers and literary figures, but was sold as property of the nation during the Revolution, following which many of its buildings were demolished and the estate was reduced to its current size. Today Château de Carles is a wineyard.
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.