The city walls and fortress of Kotor, Old Town
Kotor is among few of Mediterranean towns which has preserved its fortification system up to today. The walls surrounding the old town of Kotor were one of the main motives and reasons why the UNESCO put this city on the list of the world natural and cultural heritage in 1979. The fortification system of Kotor was built and developed through centuries. The walls are 4.5km in length, at some places they reach 20 m in height and 2-16 m thick. At the sea level of 260 m there is St. Ivan’s fortress on the basis of which there are traces of Illyrian period.