Repel the Invaders

Shown here are the rooftops of Himeji castle. You'll notice a few cutouts in the wall at the lower center of the picture. These aren't windows--archers would fire arrows through these cutouts, or pour hot oil on invaders below. Despite these precautions, though, Himeji-jo was never attacked, or, as the English brochure for the castle states, "Fortunately the castle has never been involved with the evil of ill war."