The City Walls

The wall was 7 km long, built in three parallel walls. The inside wall was 12 meters high. There were 100 eighteen meter high towers along the wall. On the outside there were moats. There were also several kilometers of walls along the sea side plus a heavy iron chain that blocked the harbor of Constantinople - The Golden Horn. The walls protected the city against intruders for 800 years before Constantinople on April 13th 1204 was conquered for the first time by crusaders during the 4th crusade.