Viewfinder competition: win a £150 hotel voucher

A town famed for its French imitation where, for over a century, couples have twirled to the Wurlitzer’s song, strictly speaking. Photograph: Alamy

More fearless couples visit to take to the sky in rows, before plunging to a pleasurable depth. Photograph: Scott E Barbour/Getty Images

By night, things lighten up, and a reputation for bawdy fun is maintained, especially if the penny drops. Name the town. 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, 4 August 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 St Petersburg. The winner was Anne Ttofi, from Fleet, Hampshire Photograph: Alamy