Your program is about to begin. But before you start streaming, you’ll need to log in.Or sign up, if you don’t already have an account. Your program is about to begin. Sign me up Or Log in Secrets of the Mona Lisa Presenter Andrew Graham-Dixon reveals who the Mona Lisa was, using decoded centuries-old documents and state-of-the-art technology to unlock the truths of history's most iconic work of art. Expires on Nov 25 Genre: Arts Anthology: Masters Preview Air Dates Extras Secrets of the Mona Lisa Preview Secrets of the Mona Lisa Preview Watch a preview of Secrets of the Mona Lisa.