Wales has more castles per head than anywhere else in the world.
Designed by Norman conquerors to secure areas of land quickly and cheaply.
Constructed to present as daunting a challenge to attackers as possible.
When concentric castles weren't possible, the Normans built linear structures.
An important Welsh strong hold and centre over the centuries - from mint to seat of government
One of the biggest fortresses in Europe.
One of the 'iron ring' castles of north Wales.
Once a key outpost of Edward I's castle network.
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