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Visit a church, a mosque or a temple and the experience is as much about what you hear as what you see. This week the first ever sound map of the world's sacred spiritual and religious spaces has been launched. Briton Stuart Fowkes is from the Cities and Memory project, which maps and documents the sounds of the world. He came to the World Update studio to tell Dan Damon about it. (Picture: Women singers in choir at Westminster Abbey, London Credit: Dan Kitwood/Getty Images)