If you're eager to add a little more culture to your trip, put Zenrin Map Museum on your travel itinerary. Check for guided tours or just browse around in your own time.
This museum, found in Kitakyushu, is on the itineraries of many travelers. Pay the entry fee and see for yourself why it's so popular. There are a few sights not far from Zenrin Map Museum that are also worth a visit, such as Kokura Castle, Shimonoseki Marine Science Museum and Kawachi Fujien.