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From hidden passageways beneath ancient cities to wartime bunkers turned tourist attractions, tunnels have long been shrouded in mystery and secrecy. Over time, many of these once-concealed corridors have been unlocked for public exploration, offering a glimpse into history that was once kept under wraps. Whether they were built for defense…
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10 Formerly Secret Tunnels That Are Now Open to the Public
Jamie Frater
17:23
From hidden passageways beneath ancient cities to wartime bunkers turned tourist attractions, tunnels have long been shrouded in mystery and secrecy. Over time, many of these once-concealed corridors have been unlocked for public exploration, offering a glimpse into history that was once kept under wraps. Whether they were built for defense…
