First mentioned in 1519, Härgla manor belonged to the von Maydell family in the Middle Ages. Later it had many owners, till the von Wetter-Rosenthal family obtained it for a longer period in the 19th century. The two-storied main building has been built in several parts during 17-19th centuries. The building has one of the most beautiful Classicistic pillar porches of the beginning of the 19th century in Estonia. From the 1920s till 1960s, the building was in private hands.
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.