An international conference on ““Creativity and the City” was held in Amsterdam’s former gas works, Westergasfabriek. Westergasfabriek is the latest urban project to transform a former industrial site into a public and cultural amenity, and it wanted to share the lessons it has learned, and bring together comparable projects from around the world. Doors of Perception supported the event with speaker suggestions and advance publicity; John Thackara gave a keynote lecture, “The Post-spectacular city” which has been widely cited.