Located in Kumamoto Prefecture on the island of Kyushu, Kumamoto Castle (熊本城, Kumamoto-jō) is one of the largest and most impressive castles in Japan. During its heyday, it was considered one of the most impenetrable fortresses in the country.
Designed with strategic defense firmly in mind, the castle originally boasted over 49 turrets, 29 gates, and a number of unique defensive measures including holes in the walls for dropping boiling water, rocks, or excrement onto attackers.