On the northeast side rises the majestic central tower of the defensive complex with an octagonal shape, 16m high. and 2m thick, the entrance of which was, for security reasons, at a height of 3.45m. from the ground surface, with access from a wooden staircase. It has semicircular windows, in one of which there are two openings with a central colonnade decorated with a cross, which probably indicates a date in the period when the castle was repaired by the Byzantine Despotate of Epirus.
In the area of the castle is preserved the church of Agia Paraskevi (the only one of the 5 that existed there before) which during the Turkish occupation had been turned into a mosque.