Expiatory Church of the Sagrada Família

Some have declared Gaudí's church to be the most extraordinary personal interpretation of Gothic architecture since the Middle Ages, and indeed the building, like many of Gaudí's other works, can be rightly compared to the timeline, craftsmanship, and formal qualities of the great Gothic cathedrals of the Middle Ages. It may be truly the "last" real Gothic building, as its various facades are covered in didactic sculptural decoration from the life of Christ and it uses a five-aisle Latin cross plan reminiscent of traditional Catholic cathedral architecture.

Gaudí's designs only use curved forms - an homage to the conditions of nature, in which, Gaudí declared, "there are no straight lines." Nonetheless, many of Gaudí's ideas for the completion of the church were lost in a fire that destroyed the workshop on the site during the Spanish Civil War in July 1936; subsequently, the project's chief architects have tried to piece together Gaudí's original vision in concert with their own designs for the structure. In some ways this is in keeping with Gaudí's wishes, as most of his works had been collaborative efforts with numerous other craftsmen and designers, and knowing that he would not live to see the church's completion, he envisioned the finished product to be a collaborative inter-generational design.

The church, which has welcomed visitors ever since Gaudí's time, is today about 70% finished, with the last phase of work to be completed consisting of the raising of the six massive central spires, and its structure (minus the exterior decoration and embellishments) is scheduled to take place in 2026. It remains a prized landmark (even well before completion) and one of the most recognizable symbols of Catalonia and Barcelona and likely will for decades to come.

The Sagrada Família (which means The Holy Family)  remains Gaudí's most famous - and most controversial - building. When finished, it will be the tallest, if not one of the largest, churches in the world. The project is an immense undertaking, to which Gaudí was appointed in 1883 (officially in 1884), a year after its conception. It occupied him continuously for the rest of his life, and when he died in 1926, the basilica was only about 20 percent complete (despite Gaudí's exclusive focus in the last twelve years of his life). It is representative of the architect's devout Catholic faith, as Gaudí knew that he would not come close to live to see its completion, but this did not deter him. Once, when questioned about its timeline, he supposedly replied, "My client is not in a hurry."

The church is made of stone, tile, stained glass, iron. It is located in  Barcelona, Spain