A magnificent Shoin-style building constructed in 1641 with a hip-and-gable cypress bark roof centered around the 54 mat-sized Tsuru-no-ma (Crane Room) and featuring numerous rooms adorned with extravagant sliding screen paintings by artists of the Kano School.
寛永18年（1641年）に建立された檜皮葺き・入母屋造りの華麗な書院建築で、54畳敷きの鶴の間を中心に狩野一派の筆になる豪華な襖絵に彩られた多くの部屋が続く。