The Quirinal obelisk originally stood in front of the mausoleum of Augustus. Brought ot Piazza del Quirinale in 1786 by Pope Vius VI, who added a large basin (it had been a cattle trough). Two colossal statues flank this obelisk. Now called Castor and Pollux they are copies of Greek works of the 5th c. BC and were set here in 1585-90, even before the obelisk.
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