The audioguide tells the story, describes the architecture and presents interesting facts about the cathedral of Cefalù, recognized as a UNESCO heritage site. The imposing dimensions of the cathedral give us an idea of Ruggero's great political project. The fulcrum of the whole Duomo are the marvelous mosaics. They cover an area of 650mq; You can examine the 3D model of the church and observe its interior through the MuByz App. The audioguide has been made by professionals in the field of history and art.