Ports and harbours of Constantinople

right|250px|thumb|Map of Byzantine Constantinople. The Kontoskalion is located in the southeastern part of the city, and named Harbour of Julian/Sophia. The Kontoskalion (), also known as Harbour of Julian (, ), Portus Novus ("New Port"), or Harbour of Sophia (), and in Ottoman times as Kadırga Limanı ("Harbour of the Galleys") was a harbour in the city of Constantinople, active from the 6th century until the early Ottoman period. In the literature it has been known under several names, and the sources about it are often contradictory.

One of the harbours of Constantinople, built by Theodosius on the Sea of Marmara

historic port of Constantinople

harbour in the city of Constantinople