It is located in the city of Delvina. It rises on a rocky ridge in an elongated shape in the direction west-east with an area of 0.17 ha. The east side is protected by two rows of walls. Delvina Castle is equipped with three turret towers and an entrance on the north side. From outside the fortification the towers reach a height of 10-12 m. The main entrance to the castle is on its east side. The first tower is preserved at the base and has the shape of a half ellipse (6.50 x 5.50 m). The castle has its origins in late antiquity, it was rebuilt in Cen. XI-XII and takes full form in Cen. XIII-XIV, with further reconstructions and in the Ottoman period. Today, the Castle is preserved in average condition, needs restoration intervention and clearing from vegetation. The south wall of the west and part of the north wall is built on steep cliffs using the natural protection provided by the terrain. Looking at them from inside the castle, the walls look flattened to the ground, but they wear the steep slopes of the hill, being preserved at a height of 2-7 m. The width of the wall ranges from 1.40 m and 2.60 m. The first tower is built of wall, with unworked stone and pieces of tiles, placed in an irregular manner and connected with strong mortar, which defines the tower in the second phase of construction.