Explanation:

 Jaisalmer Fort is situated in the city of Jaisalmer, in the Indian state of Rajasthan. It is believed to be one of the very few (perhaps the only) “living forts” in the world, as nearly one fourth of the old city's population still resides within the fort.

The fort's massive yellow sandstone walls are a tawny lion colour during the day, fading to honey-gold as the sun sets, thereby camouflaging the fort in the yellow desert. For this reason it is also known as the Sonar Quila or Golden Fort.