Since the day of its foundation, Thessaloniki was surrounded by Walls, fortification constructions for the city’s defense and protection, by possible invaders. The major parts of the fortifications were constructed during the reign of emperor Theodosius the Great (late 4th century). The total perimeter of the walls is 8 kilometers, while its present form is due to Ottoman intervention. Don’t miss the chance to meet Thessaloniki of the Walls. In this beautiful area, known as Kastra (Walls), a different city co-exists, made of old and traditional neighborhoods, particularly lovable both to the visitors and the residents of Thessaloniki, for the amazing sunset and the extraordinary view of the city from above.