Kiviloo was founded as an Episcopal castle in 1413. The few ruins of the Episcopal castle (destroyed in the Livonian War in 1558) can be seen even at present. The current eclectic manor house (in private possession) was built during the ownership period of the von Stackelbergs in about 1906-1910 (the earlier wooden structure was burnt down in 1905).
Reference: Estonian Manors
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.