Mysterious tunnels sketched by Leonardo da Vinci are DISCOVERED
A network of secret tunnels drawn by Leonardo da Vinci in 1495 has now been discovered beneath an Italian castle.
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An underground network of galleries has just been discovered in Milan thanks to Leonardo da Vinci
Under the Sforza castle in Milan, long forgotten underground passages have been revealed thanks to modern technology. These structures, described in Leonardo da Vinci's sketches, shed light on a ...