Milion Stone. Istanbul, Turkey
The Milion, was a mile-marker monument erected in the early 4th century AD in Constantinople (modern-day Istanbul, Turkey). It was the starting-place for measurement of distances for all the roads leading to the cities of the Byzantine Empire and had the same function as the Milliarium Aureum of Rome. The domed building of the Milion rested on 4 large arches, and it was expanded and decorated with several statues and paintings. It had survived intact, following the Ottoman conquest of Constantinople (1453), for about the next 50 years, but disappeared at the start of the 16th century.