This is the Serpent Column. Situated between the Walled Obelisk and the Egyptian Obelisk in the Hippodrome of Constantinople , it's a trophy made to commemorate the Greek victory over the Persians in Platea and is dedicated to the god Apollo.
Stretching back thousands of years , my goodness, I am not leaving Istanbul without seeing whatever's left of the original 3 heads, with my own eyes.
See the inscription....4th A.D........ is this awesome or what ?