The Expiatory Temple of the Holy Family (in Catalan, Temple Expiatori de la Sagrada Família), known simply as the Holy Family, is a Catholic basilica in Barcelona (Spain), designed by the architect Antoni Gaudí. Started in 1882, it is still under construction.

 It is Gaudí's masterpiece, and the greatest exponent of Catalan modernist architecture.

 It is one of the most visited monuments in Spain, along with the Prado Museum and the Alhambra in Granada, and it is the most visited church in Europe after Saint Peter's Basilica in the Vatican.​

The Sagrada Familia is a reflection of Gaudí's artistic fullness: he worked on it for most of his professional career, but especially in the last years of his career, where he reached the culmination of his naturalistic style, making a synthesis of all the solutions and styles tested up to that time.

Gaudí achieved perfect harmony in the interrelationship between structural and ornamental elements, between plastic and aesthetics, between function and form, between content and container, achieving the integration of all the arts into a structured and logical whole.