Casa Milà, better known as La Pedrera, is a building designed by the Catalan architect Antoni Gaudi and built during the years 1905–1910, being considered officially completed in 1912. It is located at 92, Passeig de Gràcia in the Eixample district of Barcelona, Catalonia, Spain.

It was a controversial design at the time for the bold forms of the undulating stone facade and wrought iron decoration of the balconies and windows, designed largely by Josep Maria Jujol, who also created some of the plaster ceilings.

Architecturally it is considered an innovative work for its steel structure and curtain walls – the façade is self-supporting. Other innovative elements were the construction of underground car parking and separate lifts and stairs for the owners and their servants.

In 1984, it was declared World Heritage by

UNESCO. The building is made open to the public by the CatalunyaCaixa Foundation, which manages the various exhibitions and activities and visits to the interior and roof.

It was built for the married couple, Roser Segimon and Pere Milà. Roser Segimon was the wealthy widow of Josep Guardiola, an Indiano, a term applied locally to the Catalans returning from the American colonies with tremendous wealth.

Gaudi, a Catholic and a devotee of the Virgin Mary, planned for the Casa Milà to be a spiritual symbol.

Casa Milà was in poor condition in the early 1980s. It had been painted a dreary brown and many of its interior color schemes had been abandoned or allowed to deteriorate, but it has since been restored and many of the original colors revived.

Gaudi wanted the people who lived in the flats to all know each other. Therefore there were only lifts on every second floor so people had to communicate with one another on different floors.

A scene in Professione: reporter, a film directed by Michelangelo Antonioni, was filmed on the roof of the building.

Mentioned in the book by Eoin Colfer: Artemis Fowl and the Lost Colony

Mentioned in the book by Trudi Alexy 'The Mezuzah in the Madonna's Foot'

Several scenes in the movie, Gaudi Afternoon, were filmed at Casa Milà.

A scale model of Casa Milà (La Pedrera) is exhibited at the Catalunya en Miniatura park.

Featured in the music video for Deep Forest's 'Sweet Lullaby'

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