The Pavilion was not only a pioneer for construction forms with a fresh, disciplined understanding of space, but also for modelling new opportunities for an association of free art and architecture. Mies placed Georg Kolbe's Alba ("Dawn") in the small water basin, leaving the larger one all the more empty. The sculpture also ties into the highly reflective materials Mies used—he chose the place where these optical effects would have the strongest impact; the building offers multiple views of Alba. "From now on, in the sense of equality for juxtaposing building and visual work, sculptures were no longer to be applied retrospectively to the building, but rather to be a part of the spatial design, to help define and interpret it. To the day, one of the most notable examples is the Barcelona Pavilion".
