Evidence Of Crime?

Another day, another alley shot, but this one was rather more disconcerting than usual.  It looked like someone had tried to break into the building.

Yet More "Seen In A Seoul Alley"

I was in "explore" mode, just aimlessly wandering the mazelike alleyways of northern Seoul, slightly claustrophobia-inducing narrow lanes that will barely allow two people to walk abreast, when I suddenly came across this rather ominous sight, suggestive of the Chateau d'If in The Count of Monte Cristo and all manner of torture-horror movies and everything in between.