As the Upper Town, the part of the city, surrounded by Olympiada Street and the outline of the city walls, is described and characterized. Since the building of the wall there are no settlements in this area. The site was inhabited massively mainly during the 17th century with the installation of Turks, who came as refugees or immigrants. In the 18th and 19th centuries the area was sparsely populated. After 1922 it was inhabited massively by refugees in particular. At that time, the form of folk architecture of the Upper City also changes.