Secrets of Great British Castles

Caernarfon Castle (1x4)

Air date: Apr 24, 2015

Historian Dan Jones explores the turbulent history of one of Britain's most famous castles, Caernarfon. Dan is in the heart of Snowdonia exploring a stronghold built not only as an impenetrable fortress but also as a lavish royal palace fit for a fairytale - Caernarfon Castle.