Viewfinder competition: win a £150 hotel voucher

The capital city of one of the world’s last remaining communist states was founded as a base for colonial trading ... Photograph: Reuters

but its importance began to wane exactly 100 years ago when its political clout was removed. Photograph: Alamy

During the second world war it was bombed several times and millions starved to death in the city and surrounding area. Name the city Photograph: Hemis

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, 14 April 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 Lodz, Poland. The winner was Lorraine Harrison of Long Eaton, Nottingham Photograph: Alamy