From Google
How many times have you wanted to use an image to start your search with? Perhaps, you wanted to know the name of someone on the picture, where a product can be bought, where a picture was taken or even who took the picture. Using the well-known adage that a picture is worth 1000 words, now you can do just that courtesy of Google Image Search. Just provide a link or upload your photo and Google will try to find “visually similar images.” By finding the same or similar images, you increase your chance of finding your answer. Thanks, Google!
source photographybay