Akizuki Castle Ruins

Akizuki Castle Ruins stands in the valley town of Asakura in central Fukuoka Prefecture, earning the nickname "Chikuzen's Little Kyoto" for its preserved historical character. The site traces its origins to the early 1200s when the Akizuki clan first established a fortress here. In 1623, the Akizuki domain was created with an allocation of 50,000 koku, and the following year Kuroda Nagaoki, third son of Fukuoka's feudal lord, rebuilt the castle as a military camp-style fortification. The Kuroda family maintained their residence here through 12 generations from the Edo period until the castle's abolition in 1873. Much of the structure was destroyed during the 1876 samurai rebellion, one of the final uprisings against the Imperial Japanese Army.

The castle ruins gained cultural prominence as the inspiration for director Akira Kurosawa's 1958 film The Hidden Fortress, based on the nearby ruins of the original mountain fortress atop Mt. Kosho. This film notably influenced George Lucas in creating the first Star Wars script, connecting this remote valley to modern cinema history. The entire town was designated a national Important Preservation District for Groups of Historic Buildings in 1998, protecting its castle-town layout and samurai-era architecture that escaped modern development due to its distance from major transportation routes.

Today visitors can explore the Kuromon (Black Gate), the castle's former main entrance relocated to Suiyo Shrine during the early Meiji period, and the Nagayamon, the back gate that remains the only structure standing in its original position. Sections of stone walls and the water moat survive around the grounds. The 500-meter Suginobaba street leading to the ruins features 200 cherry trees that create a spectacular tunnel of blossoms from late March to early April, illuminated by bare bulbs in the evenings.

In late November to early December, approximately 20 maple trees surrounding the Black Gate produce striking autumn colors that contrast dramatically with the gate's dark timber. A three-hour hiking trail extends from central Akizuki to the summit of Mt. Kosho, where the medieval mountain fortress ruins await. The compact castle town can be explored on foot within an hour, with samurai residences, teahouses, and traditional shops lining the historic streets.

Akizuki is located approximately 45 minutes by car from Fukuoka City via the Oita Expressway, exiting at Amagi IC. Using public transport, take the JR Kagoshima Line from Hakata Station to Kiyama Station (25 minutes), transfer to the Amagi Railway to Amagi Station (another 25 minutes), then board a local bus for the 20-minute ride to the Museum-mae stop in central Akizuki. Entry to the castle ruins area is free. The site serves as the starting point for exploring the broader preservation district, with the Akizuki Museum, historic samurai residences, and traditional craft shops within walking distance.