 The immense palace of Nebuchadnezzar towered terrace upon terrace, each resplendent with masses of ferns, flowers, and trees.These roof gardens, the famous Hanging Gardens of Babylon, were so beautiful that they were regarded by the Greeks as one of the seven wonders of the world.Nebuchadnezzar also rebuilt the great temple-tower or ziggurat, the Biblical "Tower of Babel," which the Greek historian Herodotus viewed a century later and described as a tower of solid masonry, a 220 yards in length and breadth, upon which was raised a second tower, and on that a third, and so on up to eight.