The fort at Jaisalmer, near the border of Pakistan, is very different from the others we’ve seen. It’s made of golden sandstone, instead of granite. And intricate sandstone carvings decorate its palace. But it’s also more than just a walled bastion, it’s a community. More than 1,000 people live within the walls of the 800-year-old fort, and tuk-tuks, motorbikes and cows all travel its twisting, narrow streets.