The doctoring of photos, once considered the reserve of tyrants and UFO nuts, is becoming increasingly widespread. With photo-editing software becoming ever more sophisticated, and the internet allowing instant distribution, it has never been easier to create and spread hoax images. Below we present 20 of the most striking, interesting and controversial fake photos, most of them produced in the last five years. Some were created to amuse, some to mislead, while others were an attempt to rewrite history. And although the credulity of the internet has been blamed for allowing hoax photos to flourish, several of the fakes below were actually uncovered by bloggers after being distributed by mainstream media outlets.