Castillo de Guardias Viejas is a battery built in 1769, near the rocky surface low rise of the Mediterranean Sea. Owned by the Regional Government of Andalusia, the municipality has carried out renovation work in the building, which houses a permanent exhibition of clothes and weapons of the Napoleonic era.
It was restored in 1980. The castle is one of five forts in the town, next to the Moorish Tower Hill, the Square Tower, Tower of the Netherlands and the Tower of Balerma. It has been a venue for musical events such as the Natural Music Festival and the festival Creamfields Andalucía.
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.