Thus were manufactured those enamelled bricks upon which the modern visitor to the ruins of Babylon walks at every step. Broken, ground almost to powder as they are, they suffice to show how far the art of enamelling was pushed in those remote days, and how great an industry it must have been. We can have no doubt that colours fixed in the fire must have formed the chief element in the decoration of the buildings of Nebuchadnezzar, of that Babylon whose insolent prosperity so impressed the imagination and provoked the anger of the Jewish prophets. It was to paintings of this kind that Ezekiel alluded when he reproved Jerusalem under the name of Aholiba for its infidelity and its adoption of foreign superstitions: "For when she saw men portrayed upon the wall, the images of the Chaldaeans portrayed with vermilion, girded with girdles upon their loins, exceeding in dyed attire upon their heads, all of them princes to look to, after the manner of the Babylonians of Chaldaea, the land of their nativity."[371] The "paintings in the temple of Belos," described by Berosus, were in all probability carried out in the same way. They decorated the walls of the great temple of Bel Merodach at Babylon, where "all kinds of marvellous monsters with the greatest variety in their forms" were to be seen.[372] We see therefore, that both by sacred and profane writers is the important part played by these paintings in the palaces and temples of the capital affirmed. And Ctesias, who is not content with allusions, but enters into minute details, tells us how the work was executed, and how its durability was guaranteed. The modern buildings of Persia give us some idea as to the appearance of those of Babylon. No doubt the plan of a mosque differs entirely from that of a temple of Marduk or Nebo, but the principle of the decoration was the same. If the wand of an enchanter could restore the principal buildings of Babylon we should, perhaps, find more than one to which the following description of the great mosque of Ispahan might be applied with the change of a word here and there: "Every part of the building without exception is covered with enamelled bricks. Their ground is blue, upon which elegant flowers and sentences taken from the Koran are traced in white. The cupola is blue, decorated with shields and arabesques. One can hardly imagine the effect produced by such a building on an European accustomed to the dull uniformity of our colourless buildings; he is filled with an admiring surprise that no words can express."[373]