Origins and architecture of the Taj Mahal metres is a smaller marble casket. Both base and casket are elaborately inlaid with precious and semiprecious gems. Calligraphic inscriptions on top of the casket recite verses from the Koran and on the sides express the Ninety-Nine beautiful names of Allah. The inner chamber of the Taj Mahal contains the cenotaphs of Mumtaz and Shah Jahan. It is a masterpiece of artistic craftsmanship, virtually without precedent or equal. The inner chamber is an octagon. While the design allows for entry from each face, only the south (garden facing) door is used. The interior walls are about 25 metres high, topped
Taj Mahal mausoleum was essentially completed in 1643 but work continued on other phases of the project for another 10 years. The Taj Mahal complex is believed to have been completed in its entirety in 1653 at a cost estimated at the time to be around 32 million rupees, which in 2015 would be approximately 52.8 billion rupees (U.S. $827 million). The construction project employed some 20,000 artisans under the guidance of a board of architects led by the court architect to the emperor, Ustad Ahmad Lahauri. The Taj Mahal was designated as a UNESCO World Heritage Site in 1983 for being