The Walls of Piran are the defensive walls of Piran, a coastal town on the Adriatic Sea in southwestern Slovenia. Significant parts of the fortification walls remain well-preserved.
Wikipedia https://en.wikipedia.org/wiki/Walls_of_Piran
Address 49 Rozmanova ulica, Piran 6330, Slovenia
Coordinates 45°31'38.772" N 13°34'17.677" E