The main castle tower of Inuyama twice received the status of national treasure in 1935 and 1952, the second time because of changes in the law on the protection of cultural objects. Inuyama is among the hundred most outstanding castles in the country. In addition, it is one of the oldest surviving castles. "Inuyama" is translated as "dog mountain", and the second the name of the castle in the translation sounds like "white Castle of the Emperor".

The castle is located 25 kilometers from Nagoya and is located on a hill with a height of 40 meters on the banks of the Kiso river. In 1965, the castle was dismantled for overhaul, and found that his two lower floors were built much earlier than the upper. The year of Foundation of the castle called 1440, extant appearance happened to 1537, and the construction of the main tower was only completed in 1620.

The castle was built on the site of a Shinto Shrine, which is due to new construction suffered. The main buildings were erected ODA Nobuyasu, a relative of ODA Nobunaga, the first unifier of the Japanese lands. The castle was several times passed from one owner to another, until in 1616 was not handed over to the Naruse family, who owned them until 1872. Then Inuyama castle was nationalized by the Meiji government, and in 1895 returned to his old employer back – too expensive for the Treasury was its maintenance and repairs after the earthquake of 1891. Now the building belongs to the Prefecture of Aichi.

Inuyama castle consists of three tiers, four above ground and two underground floors. The first floor housed the barracks for the troops of the feudal Lord. The second was kept armor and weapons, and on the third floor were the living quarters. Now the castle houses a small collection of weapons, armor, household objects and other artifacts. In the upper tier there is an observation platform from which one can see Inuyama city and the river Kiso.

Next to the castle in a special wooden fence is a dry tree, which is 450 years old. Once the tree was struck by lightning, and the castle survived. The tree is revered as the dwelling place of the deity kami, the guardian of the castle.