View of the piazzetta, from the south end looking across towards the north side, depicting stairs to St. Peter's; In transforming the small existing piazza, Bernini was expected to cater for several functions. "Four rows of simple and majestic Doric columns (300 in total) all carved from Roman travertine. This forms an oval 650 feet across the long axis marked by three monuments: positioned laterally by fountains propelling tall jets of water, and in the center, by an Egyptian obelisk that had served as a turning post in the chariot races at the ancient Circus of Nero. As they enter the piazza, the faithful are embraced by "the motherly arms of the church," Bernini's own description of his Colonnade. The Colonnade becomes simultaneously a d...