Photographed here at the Matsue castle is a part of ninomaru, the second fortification, with strong walls and a yagura turret surrounded by a wide moat.
EXIF info:
Nikon Df
Lens: VR 28-300mm F/3.5-5.6G
Focal Length: 29mm
Aperture: F/6.3
Shutter Speed: 1/1250s
ISO Sensitivity: ISO 400