Inuyamajo Castle, a national treasure in Japan, is located on top of a small wooded hill overlooking the Kiso river in the city of Inuyama, Aichi prefecture. One of twelve original castles that still exist in Japan, Inuyamajo Castle also has one of the oldest surviving wooden towers of any castle in Japan, located at the top of the castle. Believe it or not, the panoramic views from the top of the castle from the tiny viewing deck can be quite a thrilling experience!