This is the entrance to the Burggaststätten Festung Marienberg in Würzberg, Germany. If the first gates were breached during an attack, there wasn’t a straight sight into the castle which was a great protection against arrows and other projectiles. On top of that there is a small hole in the ceiling to poor boiling oil onto the attackers. In contrast to this harsh history someone was playing pop songs on an accordion right behind the corner.
Below an alleyway in Prague, only 500m walk fromt he cathedral.