Back come the Popes from Avignon, and streets grow wider and houses cleaner and men richer--all for the Bourbon's Spaniards to sack, and burn, and destroy before the last city grows up, and the rounded domes raise their helmet-like heads out of the chaos, and the broad Piazza del Popolo is cleared, and old Saint Peter's goes down in dust to make way for the Cathedral of all Christendom as it stands. Then far away, on Saint Peter's evening, when it is dusk, the great dome, and the small domes, and the colonnades, and the broad façade are traced in silver lights that shine out quietly as the air darkens. The solemn bells toll the first hour of the June night; the city is hushed, and all at once the silver lines are turned to gold, as the red flame runs in magic change from the topmost cross down the dome, in rivers, to the roof, and the pillars and the columns of the square below--the grandest illumination of the grandest church the world has ever seen. [Illustration] REGION V PONTE The Region of Ponte, 'the Bridge,' takes its name from the ancient Triumphal Bridge which led from the city to the Vatican Fields, and at low water some fragments of the original piers may be seen in the river at the bend just below Ponte Sant' Angelo, between the Church of Saint John of the Florentines on the one bank, and the Hospital of Santo Spirito on the other. In the Middle Age, according to Baracconi and others, the broken arches still extended into the stream, and upon them was built a small fortress, the outpost of the Orsini on that side. The device, however, appears to represent a portion of the later Bridge of Sant' Angelo, built upon the foundations of the Ælian Bridge of Hadrian, which connected his tomb with the Campus Martius. The Region consists of the northwest point of the city, bounded by the Tiber, from Monte Brianzo round the bend, and down stream to the new Lungara bridge, and on the land side by a very irregular line running across the Corso Vittorio Emanuele, close to the Chiesa Nuova, and then eastward and northward in a zigzag, so as to take in most of the fortresses of the Orsini family, Monte Giordano, Tor Millina, Tor Sanguigna, and the now demolished Torre di Nona. The Sixth and Seventh Regions adjacent to the Fifth and to each other would have to be included in order to take in all that part of Rome once held by the only family that rivalled, and sometimes surpassed, the Colonna in power.