The Avenches Opera Festival is one of the most renown outdoor festival in Switzerland: it leverages the unique site, an ancient roman theatre, to present every year in the summer a major opera. For its latest edition the audience could download a mobile application powered by PixLive that combined image scanning and beacon detection. This application allowed the audience by scanning some of the pages of the program to access an extensive list of bonus content such as video or audio clips and images. Using beacons installed on the site, the people attending the show were greeted and thanked at the end of the performance.