With the GMM AR + app, augmented reality enters the educational projects of the Hera Groups The Great Machine of the World. Frame the special images (markers) present on our materials with your smartphone or tablet and… WOW! Videos, photos, sites and many surprises will appear to explore the issues of environmental sustainability in a fun way!An extra opportunity for teachers, students and families who are passionate about the environment.Download the app, frame and… WOW!