As paradoxical as this may sound, science needs to build huge technological cathedrals to investigate the smallest building blocks of matter, to observe the events that took place at the very first stages of life in the universe. How can matter be turned into energy; what are the features of matter and antimatter; how could the cosmic soup give rise to the universe? These are just some of the questions scientists are trying to answer with the help of extremely large equipment available at CERN, the European Lab for Elementary Particle Physics located on the outskirts of Geneva, in a border area between France and Switzerland. Here LHC (Large Hadron Collider), a new, 27-km long particle accelerator, will be commissioned in 2007. 20 member States, 6,500 scientists, 85 nationalities: these updated figures make CERN a very efficient model of international cooperation which has just celebrated its fiftieth anniversary. Today's goals are the same that led to its foundation. Driven by a few great scientists including Italian Edoardo Amaldi, in 1954 12 European countries agreed to start a joint scientific program that no single State could carry out alone due to the lack of expertise, technology and funding. Since then the history of CERN has been made up of very large facilities like LEP, remarkable findings such as the observation of the Z and W particles that won Carlo Rubbia a Nobel Prize, as well as of practical applications including the World Wide Web, which we all use today. Produced to celebrate the fiftieth anniversary of CERN, this documentary focuses on key milestones in its history and illustrates its current researchwork and all sorts of possible applications with the help of beautiful pictures and animations.