Casting mould for the horse head, 1490-99, Leonardo da Vinci, Biblioteca Nacional de España, CC BY-NC-SA
The Colossus of Leonardo da Vinci The story of Leonardo’s monumental never-completed equestrian bronze

Leonardo da Vinci’s project to cast an equestrian monument of Francesco Sforza (1401-1466) was one of the most audacious artistic and technological challenges of the Italian Renaissance. This enormous statue was never realised but, thanks to original Leonardo notes and drawings preserved in the National Library of Spain, a virtual reconstruction of his casting process is possible. In this special exhibition, experts from Florence’s Museo Galileo use the artist’s original manuscripts, and new digital reconstructions, to bring Leonardo’s incredible project to life.