The Ring Of Brodgar Stone Circle And Henge, which is part of The Heart of Neolithic Orkney World Heritage Site, is a spectacular stone circle. The ring is surrounded by a large circular ditch or henge. The truly circular layout of the ring is an unusual attribute that singles it out as one of the largest and finest stone circles in the British Isles. The Ring of Brodgar (alternative spelling Brogar) comprises a massive ceremonial enclosure and stone circle probably dating from between 2500 and 2000 BC. Around it are at least 13 prehistoric burial mounds and a stone setting (2500-1500 BC). The erecting of the stones, along with the massive rock cut ditch was an activity that required considerable manpower and organisation.
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.