History of Rome During this twenty-year period Rome became the greatest centre of art in the world. The old St. Peter's Basilica was demolished and a new one begun. The city hosted artists like Bramante, who built the Temple of San Pietro in Montorio and planned a great project to renovate the Vatican; Raphael, who in Rome became the most famous painter in Italy, creating frescos in the Cappella Niccolina, the Villa Farnesina, the Raphael's Rooms, and many other famous paintings. Michelangelo began the decoration of the ceiling of the Sistine Chapel and executed the famous statue of Moses for the tomb of
Restoration of the Sistine Chapel frescoes have been predicted by previous restorers. One of the major dangers to the frescoes is automotive exhaust, and they are also vulnerable to the effects of the crowds of tourists that pass through the chapel every day, bringing with them heat, humidity, dust and bacteria (the latter of which can biodegrade paints and pigments). The clean plaster surfaces are more in danger from these destructive elements than they were when they were covered with a layer of smoky wax. Previously, the Sistine Chapel's only ventilation was from its windows in the upper level of the walls. To prevent exhaust fumes