This book deals with gravity in architecture. He proposes a reflection on concepts such as the footprint on the floor, the condition of the ceiling and the carrying expression of the pillars quan stops in the room of hell, the idea of ascent and the concept of limit when touring the room of Purgatory and, finally, analyzes the conjecture of weightlessness in that of Heaven.191 p.: illustration, photo, 22x24 cm, paperback