With a population of over 1.7 million (2016), Tabriz is the largest economic hub and metropolitan area in Northwest Iran. The population is overwhelmingly Azerbaijani, though Persian is spoken by residents as a second language. Tabriz is a major heavy industries hub for automobiles, machine tools, refineries, petrochemicals, textiles and cement production industries. The city is famous for its handicrafts, including hand-woven rugs and jewellery. Local confectionery, chocolate, dried nuts and traditional Tabrizi food are recognised throughout Iran as some of the best. Tabriz is also an academic hub and a site for some of the most prestigious cultural institutes in Northwest Iran.