Humayun's Tomb is remarkable due to twin reasons- first, it is the first mature specimen of Mughal architecture and second, as per the experts, Humayun's Tomb inspired Taj Mahal to be built as culmination of Mughal architecture. The credit for Humayun's Tomb, this glorious piece of architecture, goes to Humayun's senior widow Haji Begum. It was built nine years after his death in 1565 AD (or fourteen years after his death according to the manuscript of an 1hth century text). Humayun, the second Mughal emperor, ruled from 1530AD - 1556AD. He was the son of the founder of the exalted Mughal line, Babur, a descendant of Genghis Khan. The tomb, in a typical Mughal garden divided by causeways, channels and pathways, is an example of the style of the wonderfully peaceful garden-tomb which culminated in the Taj Mahal at Agra.
It's the first substantial example of Mughal architecture, with high arches and a double dome. The lofty mausoleum is located in the centre of the enclosure and rises from a podium of cells with arched openings; the central octagonal chamber contains the cenotaph, its opening closed off by perforated screens.