Are you looking for an activity on a wet and dreary day? Wander around the interesting exhibits at Yukichi Fukuzawa Memorial Museum. There's always an opportunity to learn something new.
When you've spent a bit of time at this Nakatsu museum, why not make your way to Nakatsu Castle, Futaba no Sato, and Goganji Temple? They're not too far from Yukichi Fukuzawa Memorial Museum and also a hit with many tourists.