Permanent Ink Fit for an Anatomy Lesson

These people must have pretty much loved themselves to wear their anatomy on the outside of their skin forever. I find the concept of anatomical tattoos really interesting, but I can’t decide whether my interest is in a good or bad way. There’s clearly a continuum. The man with a brain tattooed on his head, for example, is a total tool, while some of the detailed anatomy and muscle designs are actually really cool. I especially love the veins on the arms.