 The fountain is featured on the cover of Philip Jodidio 's 2005 book , Architecture : Art . Although Plensa is considered to be a conceptual artist , according to Jodidio , Plensa created a work whose architectural aspects are paramount . Its location juxtaposed with the Historic Michigan Boulevard District 's <unk> highlights these aspects . Jodidio considers the work to be a modernization of the <unk> theme , and feels that the scale of the enlarged faces <unk> the work and challenges the architecture . The towers are an integral part of the skyline that have achieved rare permanence for contemporary art . 
