The Museum occupies the antique rooms of the Rectory annexed to the Church of Santa Maria Delle Grazie. On the inside back walls, Leonardo da Vinci painted, from 1495 to 1497, the famous "Last Supper." The painting technique used by the artist as well as environmental conditions, have made the work very difficult to conserve. It has recently been re-opened after a very long, delicate and controversial restoration. Admission: EUE6.