Leonardo da Vinci 500th Anniversary, Salvator Mundi

Ben Lewis talks about his book The Last Leonardo, about the world's most expensive work of art, the painting Salvator Mundi. Authenticated as a Leonardo in 2011, he examines its journey from Leonardo’s workshop in Milan through to the present day and explains why he has doubts about its authenticity.

Art critic Waldemar Januszczak and editor of The Art Newspaper Alison Cole assess Leonardo's extraordinary art and legacy, from the Mona Lisa to The Last Supper.

One of the UK’s foremost vocal ensembles I Fagiolini talk about and perform live from their new album, Leonardo - Shaping the Invisible, in which they have matched Leonardo da Vinci's artworks with vocal masterworks, illuminating his images through the prism of music.

Presenter: John Wilson Producer: Edwina Pitman