Castles in Japan / Castles in Okinawa Gushikawa castle ruins Itoman-shi, Okinawa.Location Related posts:Kubota castleChinen castleHikone castleKaratsu castleIchijodani castle ruinsBicchu-matsuyama castleIga ueno castleKasugayama castle ruinsHara castle ruinsIwaya castleInuyama castleShiratori castle