Fubine

Italy

Fuglsang Manor

Denmark

Fukuchiyama Castle

Japan

Fukui Castle

Japan

Fukuoka Castle

Japan

Fukushima Castle

Japan

Fukuyama Castle

Japan

Fullerö Castle

Sweden

Private residence

Funai Castle

Japan

Furg Citadel

Iran

Fushimi Castle

Japan

Fyrbakken

Denmark

Fácános Castle

Hungary

Fáy Kastély

Hungary

Fântânele

Romania

Fénis Castle

Italy

Füzéri Castle

Hungary

Füzérkő Castle

Hungary

Făget

Romania

Făgăraș Castle

Romania

Gaarder

Norway

Gaasbeek Castle

Belgium

Restored · Castle

Gabar Hesar castle

Iran

Gabiano Castle

Italy

Gabri Castle

Iran

Gabrovo Fortress

North Macedonia

Gachi castle

Iran

Gadwal Fort

India

Gagangad

India

Gagron Fort

India

Gahur Castle

Iran

Gajendrgad Fort

India

Galagayin Castle

Azerbaijan

ruins have remained

Galgorm Castle

Ireland

Gallarate

Italy

Gallipoli Castle

Italy