The audioguide tells the story, describes the architecture and reports interesting facts about the cathedral. The island of Torcello, populated since Roman times, sheltered the population from the mainland, during the Gothic invasion period. The basilica of Santa Maria Assunta was built in 639. The fulcro of the cathedral are the magnificent mosaics, executed by local and Byzantine workers. 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.