The Quarry That Moves
Casa Milà (La Pedrera — “The Quarry,” nicknamed for its raw, undulating stone facade) is the last secular building Gaudí designed (1906–1912) before devoting himself entirely to the Sagrada Família. The building is on the Passeig de Gràcia, approximately 400 metres from Casa Batlló, and represents Gaudí at his most radically anti-conventional — the facade undulates like a wave of stone (no two windows are the same shape, no straight line exists anywhere on the exterior), the interior apartments flow around open-plan courtyards with curved walls that eliminate the right angle entirely, and the rooftop is a surrealist landscape of warrior-helmet chimneys and ventilation towers covered in trencadís mosaic that has inspired comparisons to everything from medieval knights to Star Wars stormtroopers.
A Sagrada Família and Casa Milà combo connects the building where Gaudí eliminated the straight line from domestic architecture with the building where he eliminated it from sacred architecture — the guide traces the logic from Casa Milà’s undulating walls (stone made to move like water) to the Sagrada Família’s branching columns (stone made to grow like trees).
The Espai Gaudí (the attic exhibition) — a museum housed in Casa Milà’s catenary-arched attic that explains Gaudí’s design methodology through models, plans, and physical demonstrations. The catenary arches (272 brick arches that support the rooftop — each shaped like an inverted chain) are themselves an exhibit of Gaudí’s structural thinking.
The rooftop is the visual highlight — the warrior chimneys, the ventilation towers, the panoramic view across the Eixample to the Sagrada Família towers and the Mediterranean beyond. The rooftop at sunset is one of Barcelona’s most atmospheric experiences.
Frequently Asked Questions
How is Casa Milà different from Casa Batlló?
Casa Batlló is the renovation of an existing building — the facade, the interior, and the rooftop are layered onto a conventional structure. Casa Milà is entirely Gaudí’s design — the building was constructed from the ground up as a complete Gaudí work, and every element (structure, facade, interior, rooftop) is his invention. Casa Milà is the more architecturally radical building; Casa Batlló is the more visually dramatic interior.
How much does Casa Milà cost?
Approximately €25–30 per adult. Night tours (with projected light shows on the rooftop) are available in summer at a higher price.
How long should I spend at Casa Milà?
Approximately 1–1.5 hours for the main floor apartment, the Espai Gaudí attic, and the rooftop.