NO ONE knows quite how many tunnels have been burrowed under London. Some of the city's many underground channels have been subject to the Official Secrets Act: the Kingsway tunnels were once used by a research arm of MI6, Britain's foreign-intelligence service. Others are so old they have fallen into disuse and been forgotten. Nonetheless, anyone walking through central London can safely assume that the busy streets around them are mirrored in criss-crossing tunnels below. The world's first s...
NO ONE knows quite how many tunnels have been burrowed under London. Some of the city's many underground channels have been subject to the Official Secrets Act: the Kingsway tunnels were once used by a research arm of MI6, Britain's foreign-intelligence service. Others are so old they have fallen into disuse and been forgotten. Nonetheless, anyone walking through central London can safely assume that the busy streets around them are mirrored in criss-crossing tunnels below. The world's first s...
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