Viewfinder competition: win a £150 hotel voucher

This important port was the scene of an infamous massacre at a crucial point in its country’s history.
Photograph: Jason Mitchell/Rex Features

Persecution and waves of emigration led to one New York neighbourhood getting its nickname from this city.
Photograph: Alamy

An annual festival marks April Fools’ Day and its citizens’ celebrated sense of humour. Name the city. Photograph: PR

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, 1 September 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 Turin. The winner was Elizabeth Wall, from Warrington
Photograph: Alamy