Researchers may have found the hidden tunnels beneath a castle in Milan that Leonardo da Vinci sketched in 1495.

Leonardo da Vinci’s sketch of a tree illustrates the principle that combined thickness is preserved at different stages of ramification.

Explore Leonardo da Vinci's most famous works like the Mona Lisa, as well as his drawings and unfinished works. In 1517, Leonardo showed a visitor a portrait of Lisa del Giocondo, the wife of a ...

He sketched flowers and flying machines ... “We now know that da Vinci’s interpretation was correct.” Coffey shows a slide of Leonardo’s sketch in his scientific presentations, marveling ...

researchers have discovered a series of secret tunnels—passageways once sketched by the Renaissance artist and scientist Leonardo da Vinci and traversed by a widower sick with grief.