In-depth article
Okayama
Okayama Castle
岡山城
Look at the foot of the black keep and you'll see its base is not square but a lopsided pentagon.
Japan's 100 Fine Castles No. 70CastleHilltop
Japan Castle Atlas
Ukita clan
宇喜多氏
Connected castles
In-depth article
663highlandCC BY 2.5Wikimedia Commons
LordRecord source: jokaku
Basic information
Okayama
Kameyama Castle
亀山城
CastleHilltop
LordRecord source: wikipedia
Basic information
Kurashiki, Okayama
Shimotsui Castle
下津井城
CastleHilltop
LordRecord source: wikipedia
Basic information
Okayama
Oshika Castle
乙子城
CastleMountain
LordRecord source: wikipedia
Basic information
Sayo, Hyogo
Rikan Castle
利神城
CastleMountain
LordRecord source: wikipedia
Basic information
Setouchi, Okayama
Toishi Castle
砥石城
CastleMountain
LordRecord source: wikipedia
Basic information
Setouchi, Okayama
Toishi Castle
砥石城
CastleMountain
Rebuilt / expandedRecord source: wikipedia
Basic information
Okayama
Kanagawa Castle
金川城
CastleMountain
LordRecord source: wikipedia