The Venetian Castle in Kythira is definitely the most distinctive monument on the island. It was built from the late 12th century until the early 13th century in Chora during the Venetian occupation. Due to its strategic position, providing good observation points to the Ionian, Aegean, and Cretan Sea simultaneously, they called it The eye of Crete.
The castle was built in different phases but the biggest part was completed by the Venetians in 1503 AD. who made some additional works and repairs. On the left side of the castle's entrance, there were the prisons whereas on the right side there is a huge cistern that dates back to the Venetian period. In the center of the castle, you can see the ruins of some two-storied houses where the conquerors had settled down.
Inside the castle, there are four churches. The oldest church is the Church of Pantokrator, built in 1545 and featuring impressive old frescoes. However, the biggest church of the castle is Panagia Myrtidiotissa, built in 1580. It was originally Catholic, but in 1806 it became an Orthodox church. The miracle-working icon of Myrtidiotissa was kept in the church for almost two centuries, to protect the city from the pirate's invasions.
In front of the temple, there are the old residences. Today, the building houses the Historical Archive of Kythira. Right next to it there is the church of Panagia Orphane, meaning Virgin Mary the Orphan. Outside the fortress, on the north side, there is a second castle wall with many churches and houses as well. The castle has many cannons dating from the Venetian, the Russian-Turkish and the English period.
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.