In a magnificent square stands the cathedral, the baptistery, and the belfry. The oldest of the edifices is the baptistery, reared on the ground whereon stood a temple of Mars. Parts of the building are said to date from the seventh century. The glories of the baptistery are many, but perhaps the most appealing of the external decorations are the reliefs of the bronze door, which Michael Angelo so greatly admired. They illustrate scenes from the life of John the Baptist. The exterior of the Duomo or cathedral is the work of several great artists, including Giotto and Andrea Pisano. A modern façade was added in 1875-1887. The Porta della Mandoria, one of the most beautiful doorways in existence, is surmounted by a mosaic of Ghirlandaio, "The Annunciation." There is not much to claim attention within the cathedral, except Michael Angelo's incomplete and last work, the "Pieta," behind the chief altar, a statue of Boniface VIII., and a painting of Dante reading his "Divina Commedia," by Michelino. Savonarola preached in this church. The triumph of Giotto, the famed Campanile, adjoins the duomo. The work was begun in 1335, and the structure and its decorations are a superb achievement of Giotto's genius. Ruskin has written a glowing passage upon this wonderful example of "Power and Beauty" in decorative architecture. The edifice is of variously coloured marbles, adorned with splendid bas-reliefs, depicting the growth of industry and art in many ages. Another set of bas-reliefs represent Scriptural scenes. The statues are the work of Rosso and Donatello. Giotto was born in the neighbourhood of Florence, and died in the city. He was the friend of Dante, who wrote an eulogy upon his supremacy as a painter. The bell-tower of Florence is his finest work in architecture and the most treasured of all the monuments in the city. Fra Angelico is intimately associated with Florence, and many of his pictures are preserved in the city. He was born in the vicinity of Florence, near the birthplace of Giotto. Vasari says: "Fra Giovanni was a man of simple and blameless life. He shunned the world, with all its temptations, and during his pure and simple life was such a friend to the poor that I think his soul must now be in heaven. He painted incessantly, but would never represent any other than a sacred subject. He might have been rich, but he scorned it, saying that true riches consisted in being content to be poor." The Academy of Arts in Florence contains many of Fra Angelico's masterpieces. There are six of his paintings in the Uffizi Palace, and several in the Convent of San Marco. In this collection of pictures are numerous works of the fourteenth and fifteenth century painters, all claiming diligent study.