The pavilion was to be bare, with no exhibits, leaving only the structure accompanying a single sculpture and specially-designed furniture (the Barcelona Chair). This lack of accommodation enabled Mies to treat the Pavilion as a continuous space; blurring inside and outside. "The design was predicated on an absolute distinction between structure and enclosure—a regular grid of cruciform steel columns interspersed by freely spaced planes". However, the structure was more of a hybrid style, some of these planes also acted as supports. The floor plan is very simple. The entire building rests on a plinth of travertine. A southern U-shaped enclosure, also of travertine, helps form a service annex and a large water basin. The floor slabs of the pavilion project out and over the pool—once again connecting inside and out. Another U-shaped wall on the opposite side of the site also forms a smaller water basin. This is where the statue by Georg Kolbe sits. The roof plates, relatively small, are supported by the chrome-clad, cruciform columns. This gives the impression of a hovering roof. Robin Evans said that the reflective columns appear to be struggling to hold the "floating" roof plane down, not to be bearing its weight.