Shiwa Castle was built by Sakanoueno Tamuramaro of the Shogun who received the life of the Kammu Emperor about 1200 years ago. Shiwa Castle Historical Park is the park where the part of Shiwa Castle in at that time was restored. The phylum of the at that time, a wall, a turret, government house and a vertical pit building are maintained in the site. It's possible to see exhibition of finding items and a reproduction drama picture in at that time at Information.