Unlike any other city, this desert fortress is one of Rajasthan's most exotic and unusual towns. Jaisalmer, an important ancient trading centre because of its strategic location on the camel trade routes, is often described as the 'golden city'. The havelis, built by merchants of the 19th century, are exquisitely carved from golden-yellow sandstone and are still in a beautiful condition. The fort built by Rawal Jaisal in the 12th century, stands on the 80 metre high Trikuta hill, with beautifully carved Jain temples. The annual desert festival take place in January and February each year and is a riot of colour and activity. Jaisalmer is also famous for its embroidery, Rajasthani mirror work, rugs, blankets, antique, stonework and camel safaris into the barren sand-duned desert.