Castles in Yamaguchi / Castles in Japan Iwakuni Castle Iwakuni-shi, Yamaguchi.LocationRelated posts:Fukui CastleHiratsuka castleKiyosu castleHirado castleImabari castleKatsuyama castle ruinsChinen castleAgena castleItokazu castleKamui chasiKaratsu castleKakegawa castle