As Open Culture notes, the Italian web site Haltadefinizione has a unique way to view six masterpieces from the famous Uffizi Gallery in Florence.
Each painting can be viewed in super high resolutionclose to 28 billion pixels, a resolution 3,000 times greater than your normal digital photoproviding the ability to examine the details with an unprecedented closeness.
The paintings featured here include Botticellis The Birth of Venus ; Leonardo da Vincis Annunciation and The Last Supper ; Verrocchio, The Baptism of Christ by Verrocchio and da Vinci; Caravaggios Bacchus ; and the Portrait of Eleonora of Toledo by Bronzino.