Sagrada Familia - During the last fifteen years of his life, Gaudí planned many parts of the church so that they could be built in the future. He did so combining geometrical forms, chosen for their formal, structural, luminous, acoustic and constructive qualities. This image shows the double twisted columns, the ruled surfaces, and the hyperbolid pattern on the ceiling. This image also shows an example of the stain glass that dominates most of the church.