Interior of Saint Peter's, Rome, after 1754, Oil on canvas, 29 1/8 x 39 1/4 in. (74 x 99. 7 cm), Paintings, Giovanni Paolo Panini (Italian, Piacenza 1691?1765 Rome), Saint Peter's was an obligatory stop for both pilgrims and tourists to Rome. Panini made numerous versions of this view, updating them in accordance with additions and alterations to the basilica. The earliest version is a large canvas in the Louvre, Paris, painted in 1730 for the French Ambassador, Cardinal Melchior de Polignac