O-CITY is a 3-year project implemented in the framework of Erasmus+ Knowledge Alliances. This project aims to foster Orange (Creative) economy as it a high transformative sector in terms of income-generation, job creation and export earnings. Universities, cities and companies participating in the project have decided to undertake together the promotion and enhancement of elements of their cultural heritage through an online educational project which is adapted and prepared to train the new generation of students in the capacities and competences needed by 21st century companies. The objectives of this project are: i) the discovery, promotion and enhancement of the cultural heritage and the presentation in the online platform, ii) the promotion of the Orange economy, through the professional training of young people who hope to get a job, or want to create their own enterprise, and iii) the modernization of Universities and Innovation in Teaching and Learning Technologies through the association of training plans with the creative items, presented under the platform of the cities.