Castles in Tokyo / Castles in Japan Hiratsuka castle ruins Kita-ku, Tokyo.LocationRelated posts:Iga ueno castleIwatsuki castleKaratsu castleKagoshima castleKasugayama castle ruinsKarakawa castleIchijodani castle ruinsHagi castleIwadonoyama castleMatsumae castleKubota castleKamui chasi