Exercise your brain with dog puzzles!

Looking for a fun, interactive way to flex your brain? Check out the dog puzzles on the National Geographic’s website. With over 100 dog photos to choose, it is difficult to do just one puzzle! The site also features the dog match game, a highly addictive dog photo matching game.

You can even upload a photo of your own canine companion for upcoming features. The site features beautiful photos of different puppies and dogs. Be warned, however, this site is quite addictive. I spent the better half of my afternoon matching dogs and browsing the dog photo gallery. And the best part? It is all free!