Rohtas Fort is one of the most imposing historical monuments which represents the Pathan period of architecture style in Pakistan. The Rohtas fort lies sprawling upon a low rocky hill to the north of Jhelum in a bend of the river Ghan (mostly spelled as Kahan). The gigantic fort is founded on steep rocks jutting into the river Kahan, its ramparts protected on the west and north sides by the river and by high hills on its east and south. It was never taken by assault and survives intact to the present day. The main fortifications consist of the massive walls, which extended for more than 4km; they are lined with bastions and pierced by monumental gateways.