Built between 1906 and 1912, Casa Milà —popularly known as La Pedrera (“the stone quarry” in Catalan)— was commissioned by Pere Milà and Roser Segimon, who sought a distinctive residence on Passeig de Gràcia. In the height of his creative maturity, Gaudí designed a building without straight lines, with a flowing stone façade that broke all aesthetic conventions of the time. Technically innovative, La Pedrera dispensed with load-bearing walls: a structure of pillars and beams allowed for open, customizable floor plans. The interior courtyards provide natural light and ventilation, while the rooftop —with its sculptural chimneys and vents— fuses function and art. From the wrought-iron balconies to the interior design, every detail follows a single organic logic. La Pedrera cemented Gaudí’s reputation as an architect capable of transforming tradition into pure avant-garde.