The Castle of Mila is a medieval fortress built north of the village of Mila and today its ruins are preserved. It is a small fortress, placed at a strategic point for the control of the Messinian plain to the north and is part of a series of smaller castles built in key locations to guard the public road and the surrounding area.

It is table-shaped in plan and has two fortified enclosures. The inner enclosure was probably a residential area and was reinforced by three quadrilateral towers around its perimeter. One side of the fortification was occupied internally by a large, probably two-storey building. The outer enclosure is preserved only at foundation level and its masonry is more negligible. The castle also features arches in superimposed hearths, hearths, latrines and driveways built in the thickness of the wall.