Actually this may be related to wikipedia as well. If I enter "voxel", the 1st, 3rd, 5th, and 7th are all duplicates of the wikipedia image. The 2nd and 24th

Actually this may be related to wikipedia as well. If I enter "voxel", the 1st, 3rd, 5th, and 7th are all duplicates of the wikipedia image. The 2nd and 24th are copies of that doomguy image, but that's not nearly as severe. Looking over a couple other searches, it seems I was wrong - it really is mostly wikipedia cropping up in the "images" tab over and over.