According the legend the church of St. Olav in Vormsi was originally built in 1219 in the guidance of Valdemar II, the King of Denmark. Although, the oldest parts of the church has been dated to the year 1400 (approximately). It has been renovated and reconstructed several times, at least in 1632, 1772 and 1929. The St. Olav’s church is unique for the fact that it has no belfry; the bell hangs above the door under the high ridge.
In the churchyard you can see several old tombs of the Swedish inhabitants, who lived in the Vormsi island until World War II. A bit furthrer is an old graveyard with the largest collection of wheel crosses in Estonia. The oldest cross dates back to 1743, the freshest one to 1923. All crosses are handmade by the peasants. Many of the wheel crosses bear clear writings but many of the crosses are of primitive treatment and have many grammatical errors. The crosses often bear the village names, sometimes also farm names, but almost always family marks. The wheel crosses often bear several dates which all show dates of death. Death dates were probably marked on an old family cross when the wooden cross on the grave decomposed. In 1977, Ministry of Arts started the inventory of wheel crosses.
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.