Five and six year graders celebrated the inauguration of the web-app allowing the experience of visiting a digital installation composed by 80 scenes created by the students of the school participating into the project. Each scene is a thanksgiving act to another European country for having invented a cultural item that has become part of the everyday’s life of all of us. In this way we host an instance of Europa Square. The students used the app by crating their own avatars, visited the scenes crated by their European peers, took digital selfies and chatted. We contributed by making a film where students thank Denmark for Lego bricks.