Astragal's 'The Ones That Got Away' competition features schemes that, for better or worse, stayed on the drawing board. Can you identify this project and its architect? Post your entry, to arrive by first thing Monday morning, to AJ Astragal, 151 Rosebery Avenue, London EC1R 4GB, or fax 020 7505 6701. The first correct entry out of the hat wins a bottle of champagne. Last issue's winner (AJ 11.11.04) was Megan West of Westcliff on Sea, Essex. The never-built scheme was Gregotti Associates' masterplan for the Potsdamerplatz, Berlin.