Sistine Chapel ceiling "The whole world came running when the vault was revealed, and the sight of it was enough to reduce them to stunned silence." The frescoes of the Sistine Chapel were restored between June 1980 and December 1999, with preliminary tests taking place in 1979. The first stage of restoration, the work upon Michelangelo's lunettes, was achieved in October 1984. The work then proceeded on the ceiling, completed December 1989 and from there to the Last Judgement. The restoration was unveiled by Pope John Paul II on 8 April 1994. The restoration team comprised Gianluigi Colalucci, Maurizio Rossi, Piergiorgio Bonetti, Bruno
Illusionistic ceiling painting sotto in sù". This was the prototype of illusionistic ceiling painting that was to become an important element of Italian baroque. Correggio at Parma took the illusionistic ceiling a step farther in his frescoes of Christ and the Apostles for the cupola at the San Giovanni Evangelista and in the "Assumption of the Virgin" in the dome of the Cathedral of Parma, which is Correggio's most famous work (1520–24); in these frescos Correggio treats the entire surface as the vast and frameless vault of heaven in which the figures float. In a visual continuity between the architectural interior and its