Renaissance artist and inventor Leonardo da Vinci drew a series of underground tunnels said to be hidden underneath Milan's ...
An underground tunnel network long rumored thanks to drawings by Leonardo da Vinci under Milan’s Sforza Castle are proven to ...
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Secret Passageways Recorded in Leonardo da Vinci's Sketches Discovered Beneath a Medieval Castle in MilanBeneath Sforza Castle in Milan, researchers have discovered a series of secret tunnels—passageways once sketched by the ...
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