The older I get, the more fascinated I become with the simple things in life.  I never had Lego as a child so I am making up for lost time as an adult.  I am fascinated by what can be created with these primary-colored plastic bricks.  Even more fascinating is that the inside structure of this guy is way more complicated than one would think just looking at him.

What fascinates you?  Photograph it in primary colors.