Näs church was built in the middle of the 13th century, and remains today largely unchanged. The interior was changed during a renovation made in 1910, and according to tradition the tower was originally higher. However, few of the original furnishings have survived.
The altarpiece dates from 1692, and made in Burgsvik, while the pulpit is from the middle of the 18th century. The triumphal cross is a copy of a medieval crucifix, but a few fragments of an original triumphal cross survive in the Gotland Museum in Visby. In the sacristy, fragments of a medieval tombstone are also stored; the fragmentary picture on the tombstone may possible depict a bishop.
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.