Snake, cetacean, prominent vein, river. Seen from the air, the structure that criss-crosses Mediacity, Liège's major new shopping complex, looks like a giant stained-glass window. This astonishing artery, which swells, curves and meanders over 350 meters in length, is a covered street, the main gallery of a huge shopping center built in 2009 to revitalize a former industrial district in disrepair. Designed by Israeli designer Ron Arad, a champion of experimentation and provocation, known the world over for his playful furniture with its rounded, sculptural forms, this is a change of scale for him, as he sets out to conquer architecture and renew an often-criticized typology: commercial architecture.