This new museum (opened in 2017), celebrating the history of Kōchi castle, is an architectural achievement in its own right. Entry is free to the museum shop (1st floor) and to the 2nd floor cafe and terrace – both with marvellous views of the castle and its grounds. The entry fee gives you access to the 3rd floor where you'll find interesting exhibitions on the history of the castle and the city of Kōchi.
Kōchi Castle Museum of History
Top choice in Shikoku