“ Of the same type are the two minarets added to the mosque of Damascus in the 15th century. In Persia the minarets are generally circular, with a single balcony at the top, corbelled out and covered over. In India, at Ghazni, there are no balconies, and the upper part of the tower tapers upwards; the same is noticeable at Delhi, where the minaret of Kutab is divided into six storeys with balconies at. each level. In the well-known tomb of the Taj Mahal the four minarets are all built in white marble, in three storeys with balconies to each storey, and surmounted by open lanterns. ”