During the medieval period, one of the main things to consider when deciding the construction of a castle was the location. And in some cases, the surrounding landscape was modified to enhance the castle’s defensive capabilities.
One such case was the Okayama Castle, which was built on a small hill nearby the Asahi river. At the time of its construction, the builders altered the river’s course, making it flow along the eastern side of the castle walls.
Yesterday’s Japan Photo: