Mysterious tunnels sketched by Leonardo da Vinci in the late 1400s may have been found
Once only indicated through a sketch by Leonardo da Vinci from around 1495, concealed passageways have been discovered ...
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Archaeologists Followed a Sketch by Leonardo da Vinci. It Led to Secret Tunnels Under an Ancient Castle.
The artworks of Leonardo da Vinci are vast and storied ... the Museum of the Rondanini Pieta, and the Museum of Ancient Art. While the underground system may not currently be fully accessible ...