TAMA Art University Library by Toyo Ito Architects
Ito’s inspiration, however, was not the arched architecture of the past. It was instead the geologic cave, which he felt was a superb natural example of how to delineate spaces without using repetitive grids of columns and walls.To keep the natural theme, Ito varied the sizes of the arches; in fact, no arch is exactly the same. The supports for the arches act like stalactites, reaching down and ever-so-lightly embracing the floor line below. Unfortunately (at least for Ito), his idea was not fully realized. He envisioned a first floor gallery, with private floors underneath. Due to site constraints, though, the library had to be built up instead of down.