The wealthy merchants of Jaisalmer chose to be remembered by posterity by commissioning some of the most ornate residences human beings ever built. These havelis were built in the 18th and the 19th centuries when trade was most lucrative, before the rise of sea trade and the Bombay (now Mumbai) harbour made land routes redundant. The havelis are made of yellow Jaisalmer sandstone and are adorned with elaborate façades, including &lsquojaali&rsquo (latticed screens) and carved balconies. The most skilful stonework is done on the outside, reminding you that the havelis are a show of wealth more than anything else. In some of the havelis, the top portions are later additions and this is quite clearly discernible in the quality of the stonework. One of the heartening developments is that many new buildings are using traditional sandstone and employing local stone carvers. The new buildings in the city don&rsquot quite match the elegance of the heritage buildings, but they bolster Jaisalmer&rsquos unique look and feel.