The old Cistercian monastery of Melón contains in its church one of the largest and most imposing sanctuaries in Galician monastic architecture. It was founded by monks from Clairvaux Abbey in France, in 1142. It was once very powerful, as attested by the remaining architecture.
Various rooms in the monastery, the galleries in the cloister and the two later chapels are currently undergoing restoration, as well as the entrance to the monastic site.
The only element remaining from the primitive Romanesque church with three naves is one section of a nave, the transepts with two semicircular chapels, and an interesting ambulatory with freestanding columns. Its walls and roofs were refurbished once again in the late 19th century in the historicist style. It is topped with cross and quarter-sphere vaults, and has a rectangular tower at the point where the transept meets the naves.
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.