Built in 333 BC along Gela's western coastline at Capo Soprano by the tyrant of Syracuse, Timoleon, Gela's ancient Greek fortifications are remarkably well preserved, most likely the result of being covered by sand dunes for thousands of years before their discovery in 1948. The 8m-high walls were originally built to prevent huge amounts of sand being blown into the city by the blustery sea wind. Today authorities have planted trees to act as a buffer against the encroaching sand.
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.