Sarajevo is the capital of Bosnia and Herzegovina, but before that it was part of the Socialist Federal Republic of Yugoslavia. During the Yugoslav Wars, which led to the breakup of the federation in the late 20th century, Sarajevo was a war zone, particularly during the Bosnian War which included the Siege of Sarajevo from 1992 to '95. Constant shelling by enemy forces left thousands of holes in the city's streets and buildings.
Many of the explosive craters left behind by the shelling were filled with red resin to mark the casualties suffered at the spot. The explosion patterns reminds some of a flower leading to the memorials being named “Sarajevo Roses.” However many of them also resemble giant bullet wounds lest anyone forget their violent origins.