In
fact no better examples of ancient Doric colonnades exist
in the known world, with most having fallen into ruin
long ago. The colonnade has 88 piers and 284 pillars,
and is surmounted by the statues of 162 saints. In the
center of the square is an Egyptian obelisk that is older
than the Basilica, the church it replaced, and maybe even
older than Rome. The obelisk, which dates back to 13th
century B.C., was moved to Rome in the first century to
stand at the center of Nero’s Circus. Pope Sixtus
V moved the obelisk to its current resting place in 1585,
and its shape was designed into the Piazza so that it
served as a center piece. Bernini added a fountain at
its base in 1675, which keeps it out of reach of the thousands
of hands that might wear away its surfaces every year.
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