Antoni Gaudí, Detail of the Nativity Façade (east façade), 1894-1930, Church of the Holy Family, Barcelona, photo by Enfo via Wikipedia, Creative Commons Attribution-ShareAlike 3.0 Unported License.
Façade
A façade is the face of a building. Often an architect embellishes a façade with a special architectural or ornamental treatment.
The Catalan architect Antoni Gaudí created perhaps the world’s most elaborate Art Nouveau façade, the Nativity Façade, for his original design of the Church of the Holy Family in Barcelona. Dedicated to the birth of Jesus, this façade is resplendent with sculptures of the natural world, all of which are invested with symbolic significance.