An animated look inside the bowels, based on a 1926 lithograph by the German artist Fritz Kahn.
[vimeo]http://www.vimeo.com/6505158[/vimeo]
In 1926, the German artist Fritz Kahn depicted the human body as an "Industrial Palace," where man had become a factory of photographic lenses, mechanical lungs, and conveyor belts moving lumps of food past tiny workers and enzyme sprayers in our steel intestines.
The original lithograph was eventually turned into this excellent visualization by German computer artist Henning Lederer in 2009, and, according to a review in today's New York Times, the two are some of the more memorable pieces on display at the Philadelphia Museum of Art's exhibit "Health for Sale: Posters From the William H. Helfand Collection."