Nagoya Castle was built by Ieyasu Tokugawa to show his power in 1615.
As you know, the most famous thing about Nagoya Castle is Gold Shachihoko. They are on the top of the castle. Shachihoko looks small, but actually, the height is 2.6meters and the weight is about 1.2killograms. The male shachihoko is lager and heavier than the female.
In Nagoya Castle, you can enjoy many Japanese cultures. You can see the 3D theater of the history of it, and enjoy Zyoukamachi life. Zyoukamachi means a castle town. There are a lot of exhibits, souvenirs and the view from the tower is really good.
Finally, I will tell you how to get there and the entrance fee. It takes us 5 minutes from Shiyakusyo Station or get off the bus stop in front of there. The fee is 500 yen. You can relief because there is a guide map for foreigners.