Helmut Smits is a clever guy. He's all about ideas and his work just makes you smile. He's so full of ideas, in fact, that there's a section of his site dedicated to rough ideas for projects that he just hasn't got around to yet (and maybe never will).
It's often not only the image itself, but also the title or description of materials that transforms what you're looking at.
Two Beams Saying HI
Dead Pixel in Google Earth
Seriously, check it out because there is a ton to see.