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Leonardo da Vinci’s Forgotten Sketch Leads to the Discovery of Secret Tunnels Beneath an Italian Castle
A 500-year-old sketch by Leonardo da Vinci has led to the remarkable discovery of hidden tunnels beneath Sforza Castle in ...
Not just the Louvre: How Europe's museums are facing the future
Paris' Louvre is one of the world's most famous museums— and it's in dire need of renovation. But structural changes are not ...