Origins and architecture of the Taj Mahal complex in the riverfront terrace pattern seen elsewhere in Agra. Its width is identical to that of the rest of the Taj. The garden historian Elizabeth Moynihan suggests the large octagonal pool in the centre of the terrace would reflect the image of the Mausoleum and thus the garden would provide a setting to view the Taj Mahal. The garden has been beset by flooding from the river since Mughal times. As a result, the condition of the remaining structures is quite ruinous. Four sandstone towers marked the corners of the garden, only the south-eastward one remains. The foundations of
Taj Mahal dates due to differing opinions on "completion". Construction of the mausoleum itself was essentially completed by 1643 while work continued on the outlying buildings continued for years. Estimates of the cost of construction vary due to difficulties in estimating costs across time. The total cost at the time has been estimated to be about 32 million Indian rupees, which is around 52.8 billion Indian rupees ($827 million US) based on 2015 values. Abdul Hamid Lahauri in his book "Badshahnama" refers to Taj Mahal as "rauza-i munawwara", meaning the illumined or illustrious tomb. Soon after the Taj Mahal's completion, Shah Jahan