The Obelisk of Theodosius is the Ancient Egyptian obelisk of Pharaoh Thutmose III re-erected in the Hippodrome of Constantinople by the Roman emperor Theodosius I in the 4th century AD..
A reminder how the great Egyptian Empire was dominated by Rome, predecessor of the Bysantines, and later the Turks who succeded them.
If only this was a lesson to the modern imperialists...