Marienkirche (St. Mary's Church) is unmissable because of a stubby tower called as 'Fat Mary'. The exact year of the construction is unkown. It is assumed that the building was begun after 1260. In 1275, the building plans were changed and the building continued as a three-nave hall church without a choir. In 1280 the building was mainly completed, but it can be assumed that the construction was still continued until the first half of the 14th century.
A Renaissance pulpit is a rare piece in an otherwise bare 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.