Japan's 12 Original Castle Keeps

Only twelve castle towers in Japan have survived from the age of samurai, and each rewards the effort of a visit.

Published October 18, 2026 at 9:23 PM JST | By Tokyo Paul

Quick answer: Twelve castles in Japan still have main keeps built before the modern era: Hirosaki, Matsumoto, Maruoka, Inuyama, Hikone, Himeji, Matsue, Bitchu-Matsuyama, Marugame, Matsuyama, Uwajima and Kochi. Himeji is the grandest, Matsumoto the most striking in black, and Bitchu-Matsuyama the most remote. Most of the others are concrete reconstructions.

What Counts as an Original Keep

Japan has hundreds of castle sites, but most keeps seen today are concrete rebuilds made in the twentieth century. The phrase "original keep" refers to a main tower, called tenshu, that survived from the Edo period or earlier without being lost to fire, war, demolition or natural events. Twelve such towers remain, scattered from northern Honshu to Shikoku, and together they form a loose pilgrimage route for castle lovers.

Not every part of these castles is original. Gates, walls and outer buildings may have been rebuilt or restored, and some keeps have been repaired over time. Even so, the timber frames, stairs and floors of the main towers belong to a much earlier era, which gives their interiors a weathered, creaking quality that reconstructions cannot easily match. Steep stairs and low ceilings are part of the character.

The Famous Five: Himeji, Matsumoto, Inuyama, Hikone and Matsue

Five of the twelve are designated National Treasures: Himeji, Matsumoto, Inuyama, Hikone and Matsue. Himeji Castle in Hyogo is the most celebrated, with white plastered walls and a complex of towers and winding paths that earned it recognition as a World Heritage site. Matsumoto Castle in Nagano is nicknamed the crow castle for its black exterior, and it sits on flat ground with a moat and a red bridge.

Inuyama Castle in Aichi stands on a hill above the Kiso River and is often cited as one of the oldest surviving keeps. Hikone Castle in Shiga overlooks Lake Biwa, and Matsue Castle in Shimane is a dark, sturdy tower beside a city moat that can be toured by boat. These five are the best-known and the easiest to reach, and they make a good starting set.

Himeji deserves the most time. The main tower rises above a maze of paths that were deliberately confusing for attackers, and the complex includes long corridors, storehouses and defensive turrets. The roofs and walls were restored in a major project completed in the 2010s, giving the castle a bright white look. Arrive at opening time, because the interior route moves slowly at busy hours, and check the official site for entry rules.

The Quieter Northern and Western Keeps

Hirosaki Castle in Aomori Prefecture is known for its cherry blossoms, which fill the moats and grounds each spring. Its three-story keep is small, and in recent years it was moved temporarily so that the stone base could be repaired. Check the official site for visiting arrangements. Maruoka Castle in Fukui Prefecture is a compact tower on a small hill, often called one of the oldest surviving keeps in the country, set among streets of a quiet town.

Bitchu-Matsuyama Castle in Okayama Prefecture, at Takahashi, is the only original castle keep on a mountaintop, standing at roughly 430 meters. Visitors walk up from a parking area, and on foggy autumn mornings it can seem to float above a sea of clouds, though the view depends on weather. It is small but atmospheric and worth planning around.

The Shikoku Group

Four of the twelve are on Shikoku: Marugame, Matsuyama, Uwajima and Kochi. Marugame Castle in Kagawa has a small three-story tower perched above some of the highest stone walls in Japan. The walls are tall and curved and rise in several tiers, and they are a highlight for visitors interested in the engineering of castle foundations. The town below has noodle shops serving sanuki udon.

Matsuyama Castle in Ehime is a hilltop castle with a lift or ropeway for easy access and a large complex of walls and gates. Uwajima Castle, also in Ehime, is a small keep on a hill in a quiet city. Kochi Castle is unusual because its main hall and keep both survive, and it stands near a lively weekly market. A Shikoku trip can combine several in a few days.

If you love the history behind these castles, remember that the keeps were more than military buildings. In peaceful times they served as symbols of a lord's authority and as storage for supplies. Lords lived in separate palaces on the grounds, most of which no longer exist. That explains why many keeps feel plain inside: they were designed more as lookouts and showpieces than as homes.

How to Plan a Castle Route

Most castle lovers group the keeps by geography. A Kansai and central Japan route can include Himeji, Hikone, Inuyama and Matsumoto, all accessible by Shinkansen and limited express trains. Tohoku offers Hirosaki, and a Chugoku route links Matsue and Bitchu-Matsuyama. Shikoku is its own circuit, with distances between castles often covered by local trains or car.

Check each castle's website for opening hours, last entry, and any restrictions on shoes, bags or entry numbers. Several castles require visitors to remove shoes and carry them in a bag, and some limit the number of people on narrow stairs at one time. Weekday mornings are the quietest. Allow at least two hours for Himeji and about an hour for most of the smaller castles.

What to Look For Inside and Out

Notice the slope of stone walls, the layout of gates that force attackers into narrow spaces, and the small openings in the plaster walls through which defenders could watch or shoot. Inside, wooden pillars, crossbeams and steep stairs show how the towers were built. Some keeps have storage rooms, weapon racks and lookout floors.

Differences between keeps are fascinating. Matsumoto has a moon-viewing room added in peacetime, Himeji has a labyrinth of paths, and Kochi shows how a palace and tower were combined. Photographing the exterior from different angles, especially from the park or moat, helps capture the proportions. Ask staff or read signs for the history of each castle; guided tours in English are sometimes offered.

Cameras and tripods follow local rules. Some castles ban flash or tripods inside, and several limit photography in certain rooms. Respect the signs, and be patient with crowds on narrow stairs. Bags and umbrellas can be left in lockers or racks at many entrances. Bring socks without holes for the shoeless parts of the visit, since the floors are bare wood.

Seasons, Etiquette and Combining with Other Sights

Spring and autumn are the most scenic seasons, with cherry blossoms around Hirosaki, Himeji and Matsumoto and colorful leaves in autumn. Summer is hot, especially on climbs, and winter can be icy in northern or mountain locations, so check conditions. Weekends in peak seasons are crowded, and lines for the main tower can be long.

Follow the posted rules on stairs and avoid touching historic walls and beams. Keep bags small so they do not scrape wood, and take care on slippery steps. Many castles sit near good food and other attractions: Himeji has a sister garden, Matsumoto has its old-town streets, Matsue has a Lafcadio Hearn museum, and Kochi has its market. Build in time to enjoy the surrounding town.

Frequently Asked Questions

Which original castle is best to visit first?

Himeji Castle is the usual first choice because of its scale and beauty, and it is easy to reach from Osaka or Kyoto. Matsumoto Castle is another excellent option, especially if you are traveling through the Japan Alps region. Pick whichever fits your route and season.

Are all original castles open to visitors?

Most are open, but some limit interior access during repairs, in bad weather or at certain times of year. Check the official sites for current hours, fees and closures, particularly for Hirosaki and Bitchu-Matsuyama, where access and viewing arrangements can change from season to season.

How long does it take to see all twelve?

It depends on how much time you spend at each, but most people need at least a week or two of careful planning. The castles are spread across several regions, so many visitors treat it as a long-term project and visit a few at a time over several trips.

Keep Exploring

More guides from Tokyo Paul: Japanese Castle Architecture: Keeps, Moats and Walls, Kochi Castle: One of Japan's Few Original Keeps and Okayama: Korakuen Garden and the Black Castle.