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."