outdated vintage medieval cannon on the fortified walls of kalemegdan fortress, in belgrade, serbia.

antique architecture army artillery balkans balkanspicture belgrade beograd cannon canon castle citadel city defense defensive dusk europe firearm fort fortification fortress gun gundpowder gunpowder historic historical history iron kalemegdan kalemegdanska kalemegdanski medieval military old outdate park point pointing protect protecting protection rusted rusty serbia srbija strategic this tvrdjava used vintage wall walls war weapon