Karen Millen, London

We don't often go to visit this brands' store along Regent st as they don't usually do anything of interest and we have to admit that only because of the RIBA collaboration we have actually been inside to take a closer look.  This incredible Magic Garden installation by the Architects Mamou-Mani is a fluid form which weaves its way across the full run of windows and illuminated from within.  Really interesting stuff.