Built in the 12th Century, the large hill fort in the city of Jaisalmer in western India is home to a vibrant community of 5,000 people.
Here, tour the world's only continuously lived in fort with the BBC's Sanjoy Majumder.
Click 'show captions' for photo information.
Photography: Moska Najib.
Slideshow: Paul Kerley.
Publication date 2 March 2009.
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