Florence Cathedral, formerly Cattedrale di Santa Maria del Fiore (Photographed on my recent trip). It was begun in 1296 in the Gothic style from a design of Arnolfo di Cambio. It was structurally completed by 1436, with the unique dome engineered by Filippo Brunelleschi. #florence #florencecathedral #brunelleschi #italy #cathedral #aerialphotography #helicopter