Researchers have discovered a network of underground passages at the Sforza Castle in Milan, Italy. These passages, sketched by none other than Leonardo da Vinci around 1495, had remained hidden for ...
A series of underground passages have been found under Sforza Castle in Milan by experts at the city's Polytechnic University ...
A network of secret tunnels drawn by Leonardo da Vinci in 1495 has now been discovered beneath an Italian castle.
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