Jaisalmer has been dubbed the `Golden City` because of the honey colour imparted to its stone ramparts by the setting sun. Made of sand stone and locally known as Sonar Quila, the Jaisalmer Fort is a dominating structure amidst sands. The city is said to be founded by one Raja Rawal Jaisal, a Bhatti Rajput ruler, in approximately 1156 A D. Jaisalmer fort is the second oldest in Rajasthan. 250 feet tall and reinforced by imposing crenellated sandstone wall 30 feet high; it has 99 bastions, 92 of which were built between 1633 and 1647. Wells within the fort still provide a regular source of water. Even today, you will find that nearly one fourth of the old city's population resides within the fort. There is a subtle fusion of Rajput and Islamic architectural styles visible in this fort. Ganesh Pol, Akshya Pol, Suraj Pol and Hawa Pol are a must see.