This is a square (10X10 mm.), five-storey, 20-meter high tower made of local slate and marble. It is the perfect example of a fortified tower of the Hellenistic period. Also, it is one of the highest surviving ancient buildings. It functioned as a defensive fortification for the surrounding rural area and when the monastery of Agia Marina was founded, the tower was included in the precinct for defensive reasons. On September 8th, 1858 the tower collapsed after an earthquake and some of the material was used for the repair of neighboring buildings.
The north side of the tower is almost intact but the rest of it has collapsed. You can visit the church of Agia Marina but entrance in the tower is not permitted as it is considered dangerous.
