Castles of Japan
- Dale Kenny lists over 300 castles, and provides a photograph for many of those which survive.
- http://www.gocastlesgo.com

Wikipedia: Osaka Castle
- An illustrated history and description of this important castle, built from 1583 by Toyotomi Hideyoshi.
- http://en.wikipedia.org/wiki/Osaka_Castle

Wikipedia: Edo Castle
- An illustrated history and description of this castle built in 1457 by Ōta Dōkan in what is now the Chiyoda ward of Tokyo.
- http://en.wikipedia.org/wiki/Edo_Castle

Wikipedia: Azuchi Castle
- An illustrated history and description of this fortress built 1576-1579 by Oda Nobunaga on the shores of Lake Biwa.
- http://en.wikipedia.org/wiki/Azuchi_Castle

Inuyama Castle
- History, scale, video clip and successive owner.
- http://www.yamasa.org/japan/english/destinations/aichi/inuyama.html

Japanese Castle
- History, movie, and links.
- http://castle.ad-g.tv/

Japanese castles
- Structures, castle town, history, guard tower and wall and moat.
- http://www.japan-guide.com/e/e2296.html

Matsumoto Castle
- History, design and photograph of castle tower and decoration.
- http://www.m-shinano.com/matsu/shiro.htm

Japanese Castles
- List of castle ruins and history.
- http://tanutech.com/japan/jcastles.html

The Castles of Japan
- ThinkQuest provides an illustrated guide to surviving castles, together with the historic context and design features. Includes a bibliography and simulations of castle-storming.
- http://library.thinkquest.org/C001119/

Oshiro Meguri Fan
- Gallery in Japan castle and city's setting.
- http://www.shirofan.com/english.html

Kumamoto Castle Photo
- Photograph in inside and surrounding area in castle.
- http://kumamotoben.jp/en/photos-castle.html

Gifu Castle
- Size of a building, former inhabitant, photo,access information.
- http://www.gifucvb.or.jp/en/kankou/meisyo/gifujo.shtml

Goryokaku
- Constructed reason,record of war,size of building.
- http://web-japan.org/atlas/historical/his01.html

Shurijo Castle
- History, draw up a city plan, video and people of castle.
- http://www.wonder-okinawa.jp/001/index-e.html

Guide to Japanese Castles
- Eric Obershaw provides a general history and description of castles in Japan, and photographs of castles he has visited, with histories taken from the official brochures and display text.
- http://www.jcastle.info/

Nijo Castle
- Kyoto castle built by the first Tokugawa shogun.
- http://www.columbia.edu/itc/ealac/V3613/kyoto/frames/aut_nijo.htm

Virtual Tour Himeji Castle
- History, map, tour and gallery of photographs of this magnificent timber castle on a stone base, built in 1601 by Terumasa Ikeda - a World Heritage site. By Hakurotowa No Kai.
- http://www.himeji-castle.gr.jp/