The Holy and Great Monastery of Vatopedi on Mount Athos was built during the second half of the 10th century by three monks, Athanasius, Nicholas, and Antonius, from Adrianople, who were disciples of Athanasius the Athonite.
From then onwards, several buildings have been constructed, most of them were built during the Byzantine period and during the 18th and 19th centuries when the monastery reached its highest peak.
Vatopedi features numerous wings, towers, etc. The katholikon (main church) was built in the tenth century, and is dedicated to the Annunciation of the Blessed Virgin Mary, in accordance with the Athonite architecture. Samples of Byzantine mosaics remain, some of which were retouched in the 12th century and in 1312. Nineteen smaller chapels in addition to the katholikon lie within and outside the boundaries of the monastery. Five are in the katholikon. These of the Saint Nicholas and Saint Demetrios lie left and right of the eso-narthex, and the chapel of the Virgin of Consolation. In the monastery are the chapels of the Holy Girdle and of the Saints Kosmas and Damian.
More than 120 monks live in the monastery today, where extensive construction projects are underway to restore the larger buildings.
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.