In addition to maintaining my little family of LEGO blogs, I'm also actively involved in Classic-Castle.com, the source for all your LEGO Castle needs. Classic-Castle just turned ten years old! In recognition of that, let's feature something appropriately themed. Here is Vitruvian Man, as drawn by Kevin Hinkle. Leonardo da Vinci, 1452-1519, was an artist, inventor, mathematician, philosopher and scientist. He took over 13,000 pages of notes, describing his inventions, his observations of nature and anatomy, and writings on natural philosophy. The Vitruvian Man is his study on the proportions of the human body, in connection to geometry.