The Naples Cathedral is not just your average church; it's a place where science takes a back seat and miracles grab the wheel. Here, a vial of Saint Januarius' blood, which is usually as solid as the faith of the believers, decides to pull a Houdini and liquefy during special festivities. It's like the saint's way of saying, "I may have been gone for centuries, but I still know how to make an entrance." This phenomenon has been baffling brains and wowing worshippers since at least 1389. And if you're lucky enough to witness this spectacle, you can say you've seen something truly divine—or at least something that defies the laws of physics as we know them.