Uspensky Church, which forms a uniform complex with a long priest house on the northern side, was built in 1783 and belongs to the early classical period. Uspensky Church is located in the same place as the St. Mary- Magdalena's Church of a Dominican monastery founded before 1300.
The details of the building are typical of Russian early classicism. The interior of the church is relatively modest in terms of architecture. The long priest's house had initially been a row house with six apartments, but in 1854- 1855, it was rebuilt and as of that time it forms a single complex with the church.
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.