Taj Mahal earlier Mughal buildings were primarily constructed of red sandstone, Shah Jahan promoted the use of white marble inlaid with semi-precious stones. Buildings under his patronage reached new levels of refinement. The tomb is the central focus of the entire complex of the Taj Mahal. It is a large, white marble structure standing on a square plinth and consists of a symmetrical building with an "iwan" (an arch-shaped doorway) topped by a large dome and finial. Like most Mughal tombs, the basic elements are Persian in origin. The base structure is a large multi-chambered cube with chamfered corners forming an unequal
Origins and architecture of the Taj Mahal one was known as Katra Omar Khan (Market of Omar Khan), the north eastern as Katra Fulel (Perfume Market), the south western as Katra Resham (Silk Market) and the south-eastern as Katra Jogidas. It has been constantly redeveloped ever since its construction, to the extent that by the 19th century it had become unrecognisable as part of the Taj Mahal and no longer featured on contemporary plans and its architecture was largely obliterated. Today, the contrast is stark between the Taj Mahal's elegant, formal geometric layout and the narrow streets with organic, random and un-unified constructions found in the Taj