Leonardo da Vinci's secret underground tunnels discovered after 500 years
A series of underground passages have been found under Sforza Castle in Milan by experts at the city's Polytechnic University ...
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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 ...