The walls which enclose the town of Moniga del Garda were built in the 10th century to face the Hungarian invasions. The castle was founded in the same period and is still in fairly good condition. Rectangular in shape (60 × 80), there is only one entrance at the centre of the eastern wall, where signs of an old drawbridge can still be seen. The crenulated city walls have four small round lookout towers on each corner. Three more towers are situated at the centre of the north, south and west walls. The square keep is now a bell tower.
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.