Google's reverse image search lets you find the source of an photo, identify objects in an image, and find similar pics. Here ...

Paste image link: Use this if the image is already online. Paste the URL and click Search. Upload a file: Click Upload a file, select the image from your computer, and click Open.

Via a "reverse image search" on a computer or smartphone, you can find people, places and things that are in the picture. Watch this video to see how to do a reverse image search on Google.