Kyra Leousa of Chora’s castle is considered to have been built during the Byzantine period. It was the first main church and it probably hosted the icon of the Virgin Mary. In the iconostasis there are interesting icons of the Cretan school out of which Panagia Glykofiloussa stands out. Another interesting church is that of Agios Konstantinos, which remained flooded for many years and that is why its murals have been destroyed. Below the castle there is Ai Giannis o Theologos, an old dependency of the monanstery of Patmos. These churches, along with the rest of Chora that amount to 30, have been recently locked. The keys are held by the families that clean them and light their vigil candles.