Source from
http://www.theglazine.com/ProjectOfWeek ... zo198.html
Flowing, transparent, anatomical – this is how the 'Weltstadthaus' designed by Renzo Piano fits into the corner of Antonsgasse and Schildergasse in Cologne city centre. With his modern design, the star architect pushes the 'blob' style of architecture forwards. The organically formed building has a harmonising effect on the pulsating shopping district. The idiosyncratic jacket of the building, made of glass and wood, is both architectural vision and technical challenge. In order to combine this extraordinary shape with a high degree of functionality, the planners developed an elaborate fa