How can cutting edge science be made simple, fun and engaging? How can we explain complex scientific phenomena to our students and increase their interest in science? In collaboration with CERN, and in the framework of the CREATIONS Project, everyday hundreds of students from all over Greece to explore the LHC interactive tunnel (http://cern.ea.gr). What is the mission of CERN? What is the Higgs Boson and can we imagine a universe without it? What really happens in a high energy particle