La Pedrera (Casa Milà)
La Pedrera was the last great civil work with Gaudí performed before dedicating all his time to the construction of the Sagrada Família. Gaudí planned a fantastic house with undulating, living forms. Construction was completed between 1906, the year in which Gaudí signed the first plans, and the end of December of 1910. La Pedrera was declared a World Heritage Site by UNESCO in 1984.