Viewfinder competition: win a £150 hotel voucher

This city’s name looks French but doesn’t sound it, and comes from a fort built to control rebellious locals. Photograph: Alamy

Capital of a state that will be the focus of political interest next February … Photograph: Alamy

… it was the happy childhood home of a Thunderbolt Kid, though the product of surrounding fields is today as likely to be fermented as eaten. Name the city. Photograph: David Levene

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 boltholes to boutique hotels. Hotels.com customers can get a night free for every 10 stayed with its rewards scheme. Email your answer by Thursday, 6 October 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 Sofia, Bulgaria. The winner was Rosanne Francis, from Colchester, Essex Photograph: Alamy