Wow! This is pretty cool. I'm assuming that it was done with lighting. I had no idea that Italians celebrated St. Patrick's Day, since it is more of an Irish cultural thing. However, I guess there are some Irish expats in Italy and since both countries are very Catholic, it makes sense that they celebrate St. Patrick's Day for the right reasons. Apparently there are quite a few Irish pubs in Italy and not only the Irish go there to celebrate.