how is hard to say. on this week's show, we'll be seeing the buildings that are hoping to get to know us a bit better. and looking at how online shopping could be getting social. but first, we'll be finding out how the world of search is changing right before our eyes. the idea of visual search is nothing new. it's something we looked at a few years ago, where you search for something online by using a picture rather than words. but the idea does seem to be gaining ground now, as omar mehtab has been finding out. omar: toys, animals, food — no need to type, just take a snap instead, and you will get a result, and that's thanks to something called visual search. you must have seen it popping up in your amazon shopping app, perhaps pinterest, even snapchat helping you find and