The castle of Aubonne was built before 1197. The castle stands on a hill overlooking the town and the Aubonne ravine. The castle was acquired in 1670 by Jean-Baptiste Tavernier. He kept his property for nearly thirty years, and finally sell it to Henri Duquesne.The last renovation of the castle, owned by the municipality, lasted eight years and ended in 1988. It is currently listed as a Swiss cultural property of national importance and today it is a secondary school with several public rooms.
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.