World's Smallest Game of Pac-Man
Little Fluffy Industries
"You know ... from up here ... you can't see the boundaries between nations," said Carrot, almost wistfully.
"Is that a problem?" said Leonard. "Possibly something could be done."
"Maybe huge, really huge buildings in lines, along the frontiers," said Rincewind. "Or... or very wide roads. You could paint them different colors to save confusion."
"Should aerial travel become widespread," said Leonard, "it would be a useful idea to grow forests in the shape of the name of the country, or of other areas of note."
(Terry Pratchett, The Last Hero)