In 1988 the british artist Paul Middlewick started seeing something else but subway plans in the Londonian underground. He took a second look at those maps and saw a forrest. In fact he saw many and many animals formed by lines and dots that actually make the subway map. From Dogs to parrots, passing elephants or turtle, they’re practically all there. He then started drawing them and these were pretty successful. He nows sells all of these Subway Animals on his own website called Animals on the underground.