The Great Church (Grote Kerk) dates from the 15th century. Prior to the Protestant Reformation it was named for St. Vitus. It survived the Spanish invasion of 1572 and the subsequent burning of the town. The church has numerous wooden vaults that are painted with scenes from the Old and New Testaments. These were hidden for many years and were only rediscovered in a recent restoration. The church is the venue for a number of cultural activities such as organ music nights and the bi-annual Naarden Photo festival.
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.