Here is a collection of the drawings of Leonardo DaVinci. The site also has links to other sites that focus on DaVinci. The thumbnails are linked to larger copies of the drawings, and they are exceptionally clear. A wonderful site to study history, science or art. I have to admit that I was surprised when I clicked on his “Views of a Fetus in the Womb” to see that the great Leonardo had the proportions wrong. Click it and see if you do not agree.