Viewfinder competition: win a £150 hotel voucher - in pictures

This crumbling old island city was the region’s colonial capital for more than 200 years and its country’s for almost 300, until shortly before independence. Photograph: Hemis

Today it hosts one of the continent’s most important jazz festivals ... Photograph: AFP/Getty Images

... while visitors come to this Unesco world heritage site to see its atmospheric but dilapidated architecture. Name the city. Photograph: Alamy

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 30 June 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 Manaus, Brazil. The winner was Miss Janina Dolny of Edinburgh. Photograph: Alamy