This castle has such a variety of stone walls.
It is called a museum of stone walls.
As time change, the shapes of the stone walls have changed.
Nozura-zumi: Rocks are stacked up just as they are.
Uchikomi-hagi: Broken rocks are stacked up and inserted to fill the gaps.
Kirikomi-hagi: Cut stones are stacked up without any gaps like bricks.