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Researchers discover tunnels under Milan's Sforza Castle, believed to be designed by Leonardo da Vinci.
Researchers at Politecnico di Milano have discovered underground tunnels beneath Milan's Sforza Castle, believed to have been designed by Leonardo da Vinci around 1495.
Using ground-penetrating radar and laser scanning, the team found a network of tunnels, including a secret one for soldiers to use during a defense breach.
This discovery highlights da Vinci's influence on Renaissance military architecture.
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Los investigadores descubren túneles bajo el Castillo Sforza de Milán, supuestamente diseñado por Leonardo da Vinci.