This week

Can you identify this building to win a £25 drinks voucher? Yank a few of these strings, and the whole arch will collapse. But what is it really?

Email your answer to First correct answer wins. The editor’s decision is final. No cash alternatives will be offered. No employees of CMP Information or their relations enter.

Last week

The building in 25 April was Slateford Green, a car-free housing development in Edinburgh by Hackland & Dove, completed in 2000. The winner was Henryk Zukowski of Edinburgh council.