The Sagrada Família (Holy Family) in Barcelona is the work that best summarises the architectural thought of Antoni Gaudí. The Spiritual Association of Saint Joseph Devotees was responsible for the construction of the temple and Gaudí took over the job after the architect Francesc de Paula del Villar resigned in 1883. Gaudí worked on the Sagrada Família until his death in 1926, converting a neo-Gothic project into a unique work in which his technical innovations surpassed any other building of the time.

The temple should be seen as a symbol of Christian faith, with 12 bell towers representing the apostles, the first propagators of Christianity, the large central dome will be an allegory of Jesus Christ and will be flanked by towers representing Mary and the four evangelists. The temple's three façades represent the Three Mysteries of the Rosary, the Birth of Christ, the Passion and the Glory.

Currently, the work is being continued under the direction of Jordi Bonnet Armando and a large group of collaborators. The Junta Constructora del Temple Expiatori de la Sagrada Família is the official body that owns the building.