The saying “All roads lead to Rome” comes from this.
Just like that; a monument was erected in the center of the Roman Empire, i.e. “in the center of the World” in New Rome, Constantinople, on which the distance of the empire to its significant cities were written. I guess these cities were Rome, Ravenna, Salonika, Athens, Antioch, Damascus, Jerusalem and Alexandria.
You can find the 3D reconstruction of the Million Stone in the web-site Byzantium1200 ( http://www.arkeo3d.com/byzantium1200/milion.html ), which provides the 3d reconstructions of the monuments of the Byzantine period as of year 1200.
The statue of Tyche found in today’s Düzce
The Goddes of Wealth, Pluto is in her arms.Istanbul archeology museum