castles: A fortified defensive building or structure. Strictly speaking, a castle was also a home, whereas a fort was purely defensive, but I have used castle for any fortified place. A castle may also have had a dungeon or donjon, a sort of prison for offenders and captured soldiers.
Synonyms:
fort, keep, garrison
Places Shown
Chepstow; Monmouthshire; Wales
Criccieth; Eifionydd; Gwynedd; Wales
Pembroke; Pembrokeshire; Wales