武田信玄ゆかりの城から堀跡を発見 日本唯一の「穴城」：朝日新聞デジタル asahi.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from asahi.com Daily Mail and Mail on Sunday newspapers.
人工の堀 何のため？ 小諸城跡で発見 戦国時代に建造か | 信毎web shinmai.co.jp - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from shinmai.co.jp Daily Mail and Mail on Sunday newspapers.