Can you identify this building to win a 拢25 drinks voucher?

This classy building has nothing to do with detective fiction. Can you solve the clue?

Email your answer to building@cmpi.biz First correct answer wins. The editor鈥檚 decision is final. No cash alternatives will be offered. No employees of CMP Information or their relations may enter.

Postscript

Last week we accidentally ran the same picture clue as the week before. The building featured in both issues was the Tate Gallery in Liverpool. The winner was Rob Melling of Curtins

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