The City Walls
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.