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See the six buildings shortlisted for the RIBA Stirling Prize, the UK's most prestigious prize for architecture.

The finalists range from projects by star architects - including a school by last year's Stirling winner, Zaha Hadid; the Olympic Velodrome by Michael Hopkins; and a museum in Germany by David Chipperfield - through to projects by less well-known names, including an imaginative office building in London, an Irish language cultural centre in Derry and the RSC's newly-revamped theatre in Stratford.