Written in code and peppered with baffling sketches, the notebooks of Leonardo da Vinci are bursting with tantalising mysteries. But now, scientists have revealed the truth behind one of the great ...

A team at the Polytechnic University of Milan uncovered secret tunnels beneath Sforza Castle, potentially linked to Leonardo da Vinci's designs. Scientists have uncovered hidden structures ...

Researchers have discovered hidden tunnels beneath Milan’s Sforza Castle, which may have been used for military defense, possibly connected to Leonardo da Vinci’s designs. The underground ...

M. A. Ronna on Leonardo da Vinci, in his capacity of hydraulic engineer; with extracts from his works and several reproductions of sketches of the numerous mechanical contrivances he invented for ...