1.
Edo Castle
- Condition: Other Buildings
- Castle Type: Flatland
- Prefecture: Tokyo
- Historical Site: Special Historic Site
- Historical Value: Top 100
- Historical Value: has Important Cultural Properties
- Rating:
★
★
★
★
- Visited: 2012
2.
Kasama Castle
- Condition: Ruins
- Castle Type: Mountaintop
- Prefecture: Ibaraki
- Rating:
★
★
- Visited: 2011
3.
Shinagawa Battery Islands
- Condition: Ruins
- Castle Type: Flatland
- Prefecture: Tokyo
- Historical Site: National Historic Site
- Rating:
★
- Visited: 2011
4.
Sunpu Castle
- Condition: Other Buildings
- Castle Type: Flatland
- Prefecture: Shizuoka
- Historical Value: Top 100
- Rating:
★
★
- Visited: 2011
4 Castles