Afterward, as you walk through the Piazza, you'll catch glimpses of the red dome completed in 1436 by Filippo Brunelleschi and was once known as the largest building in Medieval Europe. After an exciting explanation of this showstopper, you will see the showpieces of Florentine Gothic architecture, Giotto's Bell Tower standing adjacent to the Basilica of Santa Maria del Fiore The guide will also walk you around the exterior of the Loggia del Bigallo, a late Gothic building in Florence with an interesting historical fact. Finally, you’ll enter through the “Gates of Paradise” to the Baptistery of Saint John which stands across from the Duomo Cathedral. You will be guided on architecture's technical and artistic point of view before the tour concludes. The tour takes about an hour and a half, the perfect amount to see the highlights of Piazza Della Duomo.