Keeping our brains sharp and engaged has never been more important in a world where we are constantly bombarded with ...

Click on an image below to play a jigsaw puzzle created from National Geographic’s iconic photography. Images are sourced from Photo of the Day and will update daily.

There are 15 beautiful images, but parts of them are missing. Your goal is to solve the puzzle – can you identify which piece is actually missing and which one is there just to trick you?