Azuchi Castle was built by Oda Nobunaga in Shiga Prefecture during the Sengoku period. It was burned down after the transformation of Honnoji Temple, so it is said that the whole picture is unknown.
The key materials to know its appearance may lie dormant in the Vatican in distant Europe. The prefecture is promoting projects to restore this castle in AR = augmented reality and VR = virtual reality, with the goal of 450, the 2026th anniversary of its construction.