PARIS, France (CNN)-- Drawings on the back of a Leonardo da Vinci painting ... The style of the sketches resembles that of da Vinci, but the experts said closer examinations must be done to ...

Comical Penis Drawings–From The Sketchbook Of Leonardo Da Vinci An NSFW doodle found in Leonardo da Vinci's sketch book will change the way you look at the artist, and also penises. New research ...