St. Catherine's Monastery or the Dominican Monastery is a former monastery and one of the oldest buildings in Tallinn, the capital of Estonia. It is located in the heart of Tallinn's Old Town district full of warehouses and merchants' houses. Its remains constitute one of two remaining medieval monastery complexes in Tallinn.
A Dominican monastery is known to have existed at the site since at least 1246. The site, between present-day Vene and Müürivahe streets, was chosen carefully so as to facilitate both the friar's ability to preach to a large audience, and to suit their business interests, as they are known to have traded in fish. The monastery also had a brewery, producing four types of beer. Throughout the Middle Ages, the monastery was renowned for its scholarship.
In 1524, during the Reformation, the monastery was destroyed. Only fragments remain of the original complex. Parts have been incorporated into the Roman Catholic St. Peter and St. Paul's Cathedral, and other parts, including a finely carved portal, are visible via St. Catherine's Passage (Katariina käik), connecting Vene and Müürivahe streets.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.