Himeji-jo castle (jo in Japanese means castle) stands today above the city of Himeji as it was finished in the middle of 16th century.
It is considered
most beautiful and military formidable stronghold.
The task of defending the whole structure fell to the moats, elevated narrow passageways
and ishi-otoshi (rock chutes), designed to send an avalanche of stones,
or boiling water down on any invaders. This castle has a labyrinthine approach,
through a series of twisting passages, narrow gates, and ambushes. Ironically,
because of the 250-year peace imposed by shogun Tokugawa, the defense system of
Himeji-jo has never been put to the test of battle.