Take one completely black image file. Give it to google and ask it to return you images it thinks are similar. Take the top result and feed it back again. Use the first 2951 images to make this video.
It's an interesting example of one of the harder tasks in theoretical AI, 'object recognition' (I did some stuff on this for my final degree project at undergraduate level). The algorithm Google are using here is clearly based on the colour and shape of the things in the image, it's not trying to attempt to decide what it's a picture *of*.
I found it interesting anyway, especially how it's proof that
given long enough, even algorithms will eventually drag you to stick figure memes
Okay, this is actually interesting, but obviously rather NSFW - a three part anatomy series where they apparently use real cadavers to demonstrate things: