The Florence Duomo, officially known as the Cattedrale di Santa Maria del Fiore, is a symbolic and artistic landmark of the city. As one of the largest churches in the 15th century, the Duomo’s historic display of wealth and prominence overshadowed cathedrals in surrounding cities. However, the story of its construction exceeds the lifetime of its creators. Today, the Florence Duomo is one of the most popular attractions in Florence. In this guide, you’ll learn the history behind Florence’s big red dome as well as how to see the Florence Duomo.