Agra Fort

The great Mughals Babur, Humayun, Akbar, Jehangir, Shah Jahan and Aurangzeb lived here, and the country was governed from here. It contained the largest state treasury and mint. It was visited by foreign ambassadors, travellers and the highest dignitaries who participated in the making of history in India.

http://en.wikipedia.org/wiki/Agra_Fort - For more :)