Perhaps the most beautiful of the ruins of the Forum are the three marble columns of the Temple of Castor and Pollux near the Basilica Julia. They are the only prominent objects on the south-west side of the Forum, and at once arrest the eye by their matchless symmetry and grace. Time has dealt very hardly with them, battering their shapely columns and rich Corinthian capitals, and discolouring their pure white Pentelic marble. But it has not succeeded in destroying their wonderful beauty; and the russet hues with which they have been stained by the long lapse of the ages have rather added to them the charm of antique picturesqueness. They rest upon a huge mound of broken masonry, in the interstices of which Nature has sown her seeds of minute life, which spread over it a tender pall of bright vegetation. The three columns are bound together by iron rods, and still further kept in position by the fragments of architrave and cornice supported by them. They are forty-eight feet in height and nearly five feet in diameter, while their flutings are nine inches across. Around the basement a large quantity of broken columns, capitals, and pedestals has been disinterred, some of which have acquired an historic renown on account of the purposes which they have served in the fine arts. Michael Angelo converted one huge fragment into the pedestal of the celebrated bronze equestrian statue of Marcus Aurelius, which he transferred from its original site in front of the Arch of Septimius Severus, where it had stood for thirteen or fourteen centuries, to the front of the Capitol; while out of another fragment Raphael carved the well-known statue of Jonah sitting on a whale, to be seen in the Chigi Chapel of Sta. Maria del Popolo, the only piece of sculpture executed by the immortal painter. The Italian Government has entirely excavated the ruins, and thus set at rest the numerous controversies among antiquaries regarding its true name.