Humayun Darwaza(Old Fort)
Though called the Humayun Darwaza, this gate is attributed partly to Sher Shah on the basis of a fading inscription in ink that was found in one of the rooms on the upper storey. There are two entrance, one on top of the other. The lower one opened at the level of the water in the moat, while the Lipper would have been approached by a drawbridge or causeway-across the moat. Decorations include inlay work and carving in sandstone, marble, and tilework. The decorative merlons on top originally existed over the other gates of the fort too.