Sindal Old Church dates from the 13th century with choir, nave and porch, beautifully situated with the old cemetery and a newly forested churchyard. It has not been altered substantially since its foundation, and has no tower. A bellframe holds two bells, the oldest of which was cast in the sixteenth century. The altarpiece is a fine piece of Renaissance work and holds a picture by distinguished Skagen artist Michael Ancher. The granite font is probably as old as the church. The crucifix dates also from the Middle Ages.
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.