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S1, E3: At Rathlin Island, the third episode of Britain's Secret Islands visits a neolithic stone tool factory, a unique 'upside-down' lighthouse and a WW2 shipwreck. On the Isle of Man, we discover ancient megaliths, a system of parliament founded by the Vikings, tailless Manx cats and an ancient Celtic ceremony.
Documentary · Jan 16, 2024 · 42 min