Wikipedia: "To raise the image of his new capital, Constantine and his successors, especially Theodosius the Great, brought works of art from all over the empire to adorn it. The monuments were set up in the middle of the Hippodrome, the spina. Among these was the Tripod of Plataea, now known as the Serpent Column, cast to celebrate the victory of the Greeks over the Persians during the Persian Wars in the 5th century BC. Constantine ordered the Tripod to be moved from the Temple of Apollo at Delphi, and set in middle of the Hippodrome. The top was adorned with a golden bowl supported by three serpent heads, although it appears that this was never brought to Constantinople. The serpent heads and top third of the column were destroyed in 1700. Parts of the heads were recovered and are displayed at the Istanbul Archaeology Museum. All that remains of the Delphi Tripod today is the base, known as the "Serpentine Column"."