Torun was once protected by double line of walls separated by water moat. Its fragments are still preserved and listed as UNESCO heritage.
Official Website http://www.visittorun.pl/245,l2.html
Address 21 Wały Generała Władysława Sikorskiego, Toruń 87-100, Poland
Coordinates 53°0'48.158" N 18°36'22.824" E
