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Dolbarden Castle overlooks the deep waters of Llyn Peris in Snowdonia.
The hidden locations of hundreds of historic ruins and forgotten relics have been revealed in the first ever guide to Britain's crumbling past.
Author Dave Hamilton has spent more than three years travelling the length and breadth of the country chronicling little-known and hard-to-find remains of abandoned castles, churches, settlements and industrial works.
His new book, Wild Ruins, lifts the lid on more than 250 haunting sites nationwide in a bid to reconnect people with the country's history.