Kokura-jō in Kitakyūshū, Japan.
A virtual Ōita-jō is reconstructed with lights in Ōita, Japan.
People and trams at a tram stop, with a view of Kumamoto-jō, in Kumamoto, Japan.
The Inui-yagura turret of Kumamoto-jō after an earthquake partially collapsed the stone walls, in Kumamoto, Japan.
The watch tower is one of few remaining structures at the castle ruins site in Takamatsu, Japan.
The concave curvature of the castle wall at Matsuyama-jō, in Matsuyama, Japan.
Imabari-jō is one of just a few castles surrounded by a salt-water moat connected to the sea, in Imabari, Japan.