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Xenostral: Trethevy Quoit, Cornwall
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Xenostral: Ring of Brodgar, Orkney
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Xenostral: Sunset at Newgrange stoneage passage tomb, Boyne Valley, Ireland
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Xenostral: Moonrise at Mow Cop Castle
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Xenostral: Ring of Brodgar, Orkney
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Xenostral: Iron Age burial chamber Pentre Ifan