Vätö Church is mentioned in written sources for the first time in 1337 and was built earlier in the same century. The vaults supporting the ceiling were constructed in the 15th century. They are profusely decorated with frescos in a style reminiscent of Albertus Pictor and probably dates from the last quarter of the 15th century. The church porch was also built at around the same time. Among the church furnishings, the baptismal font is unusual and originally belonged to Nydala Abbey in Småland. The church also has a 16th-century wooden sculpture depicting Saint George and the Dragon, a piece of art inspired by the Saint George and the Dragon in Stockholm made by Bernt Notke. A triumphal cross that earlier belonged to Vätö Church is today on display at the Swedish History Museum.
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.