The keep in cherry-blossom season, April 2025. Today's keep was rebuilt in 1966, with the iron north face and other details restored in 2022.Editor0206CC0Wikimedia Commons
Matsumoto Castle's keep complex reflected in the inner moat, with mountains behind, May 2019.ManishprabhuneCC BY 4.0Wikimedia Commons
The National Treasure keep in the main enclosure, September 2006. It is an original Edo-period keep, with many differently shaped gables combined on its roofs.663highlandCC BY 2.5Wikimedia Commons
The National Treasure keep seen from the main enclosure, March 2015. Completed around 1611, it is one of Japan's original surviving keeps. The lower wing in front is the attached entrance turret (tsuke-yagura).663highlandCC BY 2.5Wikimedia Commons

日本のお城アトラス

Japan Castle Atlas

Every castle has stories to tell.

The people who built them, defended them and lived in them. What you can only see at each castle — in photographs and short stories.

Ways to explore

Explore the mapBy prefectureBrowse photosBy featureBy personNear meThemes
The keep in cherry-blossom season, April 2025. Today's keep was rebuilt in 1966, with the iron north face and other details restored in 2022.Editor0206CC0Wikimedia Commons
The keep in cherry-blossom season, April 2025. Today's keep was rebuilt in 1966, with the iron north face and other details restored in 2022.

Where this atlas began

On the north side of Fukuyama Castle

Walk around to the north side, and the white keep turns into a wall of black iron.

On a visit to Fukuyama Castle, we learned that only the north face of its keep is covered in black iron plates. Why only the north? Who built it that way, and against what? Every castle holds more than one story. This atlas carries that discovery to castles across Japan.

Fukuyama Castle

Castles to read in depth

Themes

Browse by prefecture

National register

Castles collected by this atlas

Not only famous castles, but ruins where only stone walls or moats remain, Ryukyu gusuku, Ainu chashi and jin'ya. We publish what we have confirmed, and show the candidates still under review.

Basic pages published
2,502
Candidates under review
2,814
Photos checked
1,283
National register