A mysterious underground stone passageway found in Cornwall, England, dating from the Iron Age, built by ancient people for unknown purposes such as storage or refuge.
From Cornish 'fogou' or 'fougou', a Cornish word of uncertain origin that may relate to 'fug' meaning confined space or hidden chamber. These structures are unique to Cornwall and are historically significant archaeological features.
Archaeologists still aren't entirely sure why the ancient Cornish people dug these narrow, cramped tunnels into the earth—they might have been grain stores, hiding places from raiders, or even ritual spaces, making them one of Britain's greatest historical puzzles.
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