Copenhagen's Little Mermaid must be used to being tampered with. Her history is littered with sawn off body parts, blasts and paint attacks. Situationists, radical feminists, anti-war and immigration protestors - they've all had a go. Well now she has a temporary 'harbour' in Shanghai as part of the Danish Pavilion at the World Expo. It wasn't a waveless journey, but then again architect Bjarke Ingels had another kind of statement in mind for the maid. The theme of the Pavilion Welfairystales (Welfare + Lifestyles) and the design by BIG-Bjarke Ingels Group offers visitors the chance to experience the Danish urban lifestyle and in particular its celebrated biking culture. Over 300 free city bikes will be located on the roofscape of this 'traffic loop' structure, allowing visitors to do their journey on rush or relax mode. Described as 'relaunching the bicycle in Shanghai as a symbol of lifestyle and sustainable urban development', for Ingels the Pavilion represents a stance against the pain/gain equation of sustainabiity: 'Gradually we all get the feeling that sustainable life simply is less fun than normal life. If sustainable designs are to become competitive it can not be for purely moral or political reasons - they have to be more attractive and desirable than the non-sustainable alternative. With the Danish Pavilion we have attempted to consolidate a handful of real experiences of how a sustainable city - such as Copenhagen - can in fact increase the quality of life.'