Here is a view of Shuri Castle in Naha, Okinawa. It dates back to the 14th century and was the royal residence until the Kingdom of the Ryukyus was absorbed by Japan in 1879.
Please notice that, made of wood and highly decorated, it is a castle dedicated to living and diplomacy, not to battles. The Okinawan kings kept their corner of the world happy and peaceful for 500 years.
