Viewfinder competition: win a £150 hotel voucher

This city gives its name to one of the world’s most popular cuisines (and a major language) ... Photograph: Guardian

... which has been exported to every corner of the globe by the region’s emigrants.
Photograph: Alamy

In recent decades millions of workers have moved in the other direction to drive this modern industrial powerhouse. It once had a druggy reputation. Name the city. Photograph: Xinhua Press

This week’s winner will receive a £150 voucher from Hotels.com which can be used at more than 120,000 places to stay across the world, from quirky B&Bs and family bolt holes to boutique hotels. Hotels.com customers can get a night free for every 10 stayed with its rewards scheme. Email your answer by Thursday 12 May to viewfinder@observer.co.uk or send a postcard, with address and phone number, to Viewfinder, The Observer, Kings Place, 90 York Way, London N1 9GU.

■ Last week’s answer was Hamburg. The winner was Ashank Bidri of London.
Photograph: Alamy