Jaisalmer Fort, located in Rajasthan, India, is a UNESCO World Heritage site built in 1156 AD, renowned for its yellow sandstone walls that blend with the surrounding desert. The fort features a robust design including gates, a royal palace, temples, and an advanced drainage system, but has faced challenges due to modern construction. The annual Desert Festival celebrates the region's rich culture with folk performances, camel races, and traditional activities, attracting many tourists.