stronghold, citadel
| FORTRESS |
| Word | Clue |
|---|---|
| CASTLE | keep, fortress |
| ALCAZAR | Moorish fortress in Spain |
| BASTION | stronghold |
| CITADEL | stronghold, castle |
| BASTILLE | former fortress in Paris, France |
| STRONGHOLD | citadel, castle |
| CITADEL | stronghold, castle |
| SYSTEM | structure, arrangement |
Snapshots of the past: 1908
Snapshots of the past: 1905