Located in the lively neighborhood of Gràcia in Barcelona, Casa Vicens is the first significant architectural project by Antoni Gaudí. Built between 1883 and 1885 as a summer residence for the merchant Manel Vicens, this house marks the beginning of Catalan modernism with its neo-Mudéjar style, characterized by ceramics, Arab-Andalusian elements, and vibrant decorations.

The facade stands out for its original use of bricks, green and white colored ceramics, and vegetal details inspired by the local flora; the interiors are decorated with painted tiles, Moorish arches, and natural motifs that reflect Gaudí's aesthetic experimentation. The house, structured on four levels, includes a basement, main floor, first floor, and attic, in addition to the rooftop garden with ornamental chimneys and a panoramic view of the city.

The visitable route includes the smoking room, the veranda, and recreated spaces to display drawings, models, and videos that tell the story of the building and the evolution of its style. Even the exteriors, with an inner garden, offer a space for relaxation and contemplation, despite the reduced area preserved today compared to the original project.

Casa Vicens is open to the public every day, with hours from 10:00 am until late afternoon or evening, and requires advance booking. It offers audio guides in multiple languages, guided tours, the Sweet Gaudí experience with tastings in the cafeteria, and exclusive morning photo options for small groups before the standard opening.