Design and Construction of the Taj Mahal
Named the Taj Mahal in honor of Mumtaz Mahal, the mausoleum was constructed of white marble inlaid with semi-precious stones (including jade, crystal, lapis lazuli, amethyst and turquoise) forming intricate designs in a technique known as pietra dura. Its central dome reached a height of 240 feet (73 meters) and was surrounded by four smaller domes; four slender towers, or minarets, stood at the corners. In accordance with Islamic tradition, verses from the Quran were inscribed in calligraphy on the arched entrances to the mausoleum, in addition to numerous other sections of the complex. Inside the mausoleum, an octagonal marble chamber adorned with carvings and semi-precious stones housed the cenotaph, or false tomb, of Mumtaz Mahal. The real sarcophagus containing her actual remains lay below, at garden level.
The rest of the Taj Mahal complex included a main gateway of red sandstone and a square garden divided into quarters by long pools of water, as well as a red sandstone mosque and an identical building called a jawab (or "mirror") directly across from the mosque. Traditional Mughal building practice would allow no future alterations to be made to the complex. As the story goes, Shah Jahan intended to build a second grand mausoleum across the Yamuna River from the Taj Mahal, where his own remains would be buried when he died; the two structures were to have been connected by a bridge. In fact, Aurangzeb (Shah Jahan's third son with Mumtaz Mahal) deposed his ailing father in 1658 and took power himself. Shah Jahan lived out the last years of his life under house arrest in a tower of the Red Fort at Agra, with a view of the majestic resting place he had constructed for his wife; when he died in 1666, he was buried next to her.