Gusuku sites and Related Properties of the Kingdom of Ryukyu From Nakijin Castle From Zakimi Castle From Katsuren Castle From Nakagusuku Castle From Shuri Castle From Sefa Utaki From Tamaudun From Sonohyan Utaki Stone Gate From Shikina-En Gardens What is a Gusuku? From The Origin of the Gusuku From Gusuku Transitions From Gods and Religious Beliefs From The value of Okinawan Stone Building Gusuku History From Gusuku Period   From The Sanzan Period