The Baptistery is one of the oldest monuments in Florence and we will enjoy its breathtaking mosaic decorations and unique architecture. We shall then continue to the Cathedral of Florence, named Santa Maria del Fiore, which is the religious center of the great medieval city and for two centuries was the largest church in Christendom. We will explore the vast architecture of the Cathedral and analyze the engineering marvels that not only made this structure possible, but also Brunelleschi’s great crowning dome.