The archaeological season of 2004 undertaken in the fortified settlement of Grazhdan, allowed us to determine the general plan of the surrounding walls and that of the two towers, located on the northern part of this ancient and medieval defensive enclosure. The excavations revealed entirely two of the towers: towers 41 (of rectangular plan) and 42 (of quadratic layout), which were both built in an opus incertum technique.
The vegetation coverage was removed from the buttressed wall between the two upper mentioned towers; the lateral side and the outer parts of this wall line are well-preserved.
At the end of this excavation season, a complete and comprehensive plan, as well as a dating chronology of the settlement was obtained. From the stratigraphy it is clear that the remaining walls date to the 4th Century AD and to the medieval period. The site covers an area of 36 ha, surrounded with massive walls of 3, 3 m wide and 44 rectangular, quadratic, U-shaped and hexagonal defensive towers, whiles three gateways enable access into the protected area.