Since 1959, Lyon has been hiding a secret buried 20 metres under its cobbles: a network of ancient galleries called the fish edges. With its 1.4 kilometres of carefully constructed galleries, this unique maze in Europe remains an unanswered archaeological puzzle after more than sixty years of study.
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Since 1959, Lyon has been hiding a secret buried 20 metres under its cobbles: a network of ancient galleries called the fish edges. With its 1.4 kilometres of carefully constructed galleries, this unique maze in Europe remains an unanswered archaeological puzzle after more than sixty years of study.