The Aragonese Castello di Brucoli was built in the 15th century as a watch tower to guard the coast and monitor and protect against Turkish-Barbarian raids. It underwent several additions and alterations in the following centuries, e.g walls with circular towers at the corners were added in the 16th century.
The Castle of Brucoli dominates much of the Gulf of Catania and was therefore used as a watch and guard post in the 18th century, hosting a military garrison in the employ of the nearby fortress of Augusta. It guarded also the port of Brucoli.
Despite the effects of time, the castle is in good condition.
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.