Casa Milà ( ), popularly known as La Pedrera ( ; "the stone quarry") in reference to its unconventional rough-hewn appearance, is a Modernista building in Barcelona, Catalonia, Spain. It was the last private residence designed by architect Antoni Gaudí and was built between 1906 and 1912. The building was commissioned in 1906 by Pere Milà and his wife Roser Segimon. Wikipedia