History surrounds you at Karatsu Castle. From the way it was constructed to what it was used for, this mighty building has many secrets lurking behind its doors.
This fortified complex is often on the itineraries of travelers to Karatsu. But Karatsu Castle isn't the only highlight in the area. Niji-no-Matsubara, Karatsu Shrine, and Nijino Matsubara are some other interesting attractions nearby.