With site-specific interventions by such artists as Heimo Zober??nig, Tom??s Saraceno, Katarina L??fstr??m, Philippe Decrauzat, John Armleder and Keith Sonnier, post-minimalist, non-figurative pieces were prom??i?? nently installed in the building???s most heavily fre?? quented areas, each a symbol of the very special link between art and architecture, regardless of the imposing or social nature o