Simiane-la-Rotonde has remained practically unchanged for centuries. On the hilltop stands the truncated cone-shaped edifice that gave Simiane-la-Rotonde its name: the keep, or rotunda, of the old Château des Simiane-Agoult. Built in the 12th century, its massive exterior is remarkable for its hexagonal shape. The interior, an uneven dodecagon, is especially splendid. It is a vast room with a series of arches topped by finely sculpted capitals. The ceiling has a stone cupola of 12 ribbed vaults towering five metres high. It is an amazing example of Romanesque architecture, both civil and military.
The southern wing of the castle has also been restored and you can visit parts of the main building and the fortifications. The rooms on the ground floor date from the Middle Ages and recount the castle's history. The upper floor, in Renaissance style, houses the Sainte Victoire Aromatherapy Laboratory, which offers workshops in essential oils to the public.The castle is also the magical setting for exhibitions and the international festival of early music Les Riches Heures Musicales de la Rotonde in August.
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.