We leave the Jewish quarter of the old city and move on to the Christian quarter. The narrow passage goes to the right under the arch. Ten meters from us in this direction, there is a public toilet. The toilet is open from nine in the morning until seven in the evening. A little farther away, the massive fortress wall was discovered. It was built during the siege of the city by the troops of the Babylonian king Nebuchadnezzar. This fortified wall is twenty-seven centuries old.