The image below gives you San Marco Square (Piazza San Marco), which is the main square in Venice. It is surrounded by chic sidewalk cafes and fancy suvenier shops. Although it looks like this picture has nothing to do with optical illusions, infact it has…a lot! If you spotted what’s it all about, post your comment, and if you’re not sure, jump inside this article and scroll down to see more pictures of Venice, Italy. And then perhaps, you’ll notice what was the catch. Enjoy :)