Loch Na Berie is the site of an Iron Age Broch and associated causeway. The site was excavated in the 1980s, which identified that the Broch had survived to first floor level. Loch na Berie is roughly 16.5 meters in diameter and the walls are roughly 3 meters thick. A modern causeway made of stones robbed from the broch was built to the west of the broch, though it is thought that an ancient causeway underlies the modern one.
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.