A gardener (mali) walks across the grounds of Humayun's tomb, New Delhi, India..The tomb itself built in 1570, is of particular cultural significance as it was the first garden tomb on the Indian subcontinent. It inspired several major architectural innovations, culminating in the construction of the Taj Mahal..The tomb was built for Safdarjung, the powerful prime minister of Muhammad Shah who was the weak Mughal emperor from 1719 to 1748. There are four water canals leading to four buildings. One has an ornately decorated gateway while the other three are pavilions, with living quarters built into the walls. Octagonal towers are in the corners. The canals are four oblong tanks, one on each side of the tomb. The garden, in the style evolved by the Mughal Empire is known as a 'charbagh'