"Circular Horizons" project has the ambitious goal of conceiving, developing and implementing concepts and best practices related to the reuse of resources and more broadly to the world of circular economy at local, national and European level. We propose a sequential approach, starting from the broader concept of sustainability and then addressing in detail the topic of circular economy, ranging from the concepts of maximizing the use of resources, reducing waste and promoting recycling and reuse through a coordinated and multi-level approach, promoting the active and central role of young people as European citizens and therefore protagonists of the system. This project aims to strengthen young people's awareness of the principles of sustainability and to build an eco-sustainable model that not only addresses environmental challenges, but also creates opportunities for growth and development for future generations.