Exactly 56 years ago today, a convention was signed creating the European Organization for Nuclear Research, otherwise known as CERN. In those 56 years, CERN has produced 5 Nobel prizes for its physicists, discovered innumerable particles and effects (including "neutral currents" and the first antihydrogen atoms, to name just a few), nurtured many bright young physicists, and created the World Wide Web -- originally intended to enable easy communication of results among researchers! So happy birthday, CERN, and may you have many more decades of discovery.
(Yes, I know this is a wedding cake, but isn't it amazing? Besides, the only physics-related birthday cake photo I could find was kind of ugly.)