Santa María de Bujedo Monastery was probably founded between 1159-1172. The oldest documentary evidence confirming the existence of the monastery dates from 1182. It was confiscated in 1835.
The church, built in the first half of the 13th century, has a Latin cross plan with a single nave. There are some remains left of the original monastery buildings dating to the the 13th century. Seven double capitals and four bases are preserved from the medieval cloister.
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.