When Constantine established his new capital of the Roman Empire, he commissioned a grand circular forum with a monumental column at its center. Carved from red porphyry stone, the 115-foot (35-meter) column was topped with a golden statue of Apollo bearing Constantine's face.
A storm toppled the statue in 1106, and a fire in 1779 damaged the base (earning it the nickname 'Burnt Stone'). Periodic restoration work has reinforced cracks in the marble, and in 2003, the column underwent a more thorough restoration, though the statue on top has never been replaced. Visitors can see the historic Constantine Column near the Çemberlitas metro station in Istanbul, where city tours often pass by.
Look for the column upon exiting the Çemberlitas metro station or tram stop.