In Roman times, the famous Amber Road began in Aquileia. The rich city was destroyed by the Huns, and its inhabitants fled to nearby lagoons, founding Grado and Venice. The Unesco listed basilica and baptistery have survived to this day, as well as several archaeological sites. In the cathedral, I had the opportunity to admire a magnificent, early Christian 4th-century floor mosaic with an area of 760 square meters and medieval frescoes.