Dubrovnik, the historic Ragusa Republic
The North walls of Dubrovnik, with in the background the strong circular Minčeta Tower, the 14th-century fortress located at the highest point of the old town. The main wall on the land side is 4 to 6 metres thick, and, at specific locations, the walls reach up to 25 meters in height. In total, the walls are 1940 metres long with six fortresses.
Photo by Ludo Kuipers, Sat Sep 29, 2018