On the island of Kythira, there are many medieval castles that reveal the long history of the island, as well as the, conquers, the sieges, and the battles that happened during the centuries.
Probably the most important castle on the island is the one located in Chora. It is called "Fortetsa" and according to the researchers it was built in the 13th century. The castle is actually situated on a great, strategic spot as from there the Venetians could observe all ships that were sailing towards or from Crete.