<Tr> <Th> State Party </Th> <Td> Italy </Td> </Tr> <Tr> <Th> Region </Th> <Td> Europe and North America </Td> </Tr> <P> Florence Cathedral, formally the Cattedrale di Santa Maria del Fiore (Italian pronunciation: (katteˈdraːle di ˈsanta maˈriːa del ˈfjoːre); in English "Cathedral of Saint Mary of the Flower") is the cathedral of Florence, Italy, or Il Duomo di Firenze, in Italian . It was begun in 1296 in the Gothic style to a design of Arnolfo di Cambio and was structurally completed by 1436, with the dome designed by Filippo Brunelleschi . The exterior of the basilica is faced with polychrome marble panels in various shades of green and pink, bordered by white, and has an elaborate 19th - century Gothic Revival façade by Emilio De Fabris . </P> <P> The cathedral complex, in Piazza del Duomo, includes the Baptistery and Giotto's Campanile . These three buildings are part of the UNESCO World Heritage Site covering the historic centre of Florence and are a major tourist attraction of Tuscany . The basilica is one of Italy's largest churches, and until the development of new structural materials in the modern era, the dome was the largest in the world . It remains the largest brick dome ever constructed . </P>

When was the cathedral of santa maria del fiore built