Construction began in 1882 under architect Francisco de Paula del Villar, but when Antoni Gaudí assumed control in 1883, the project transformed into something no committee had approved. Gaudí spent 43 years on site, the final 15 living in his workshop, refusing all other commissions.
When a tram struck him in 1926, bystanders mistook the shabby figure for a beggar. He died three days later, leaving behind a basilica one-quarter complete and a forest of plaster models that would guide architects for the next century.
Today the Sagrada Família remains the world's largest unfinished church, its nine completed spires visible from almost anywhere in Barcelona's Eixample district. The basilica's nave reaches 45 metres, supported by columns that branch like trees—Gaudí studied eucalyptus and sequoia growth patterns to calculate load distribution. His naturalist vision extends to the Nativity Façade, where stone turtles bear column bases and chameleons climb the doorways. The Passion Façade, designed by Josep Maria Subirachs decades after Gaudí's death, offers angular counterpoint: gaunt figures and bare geometry marking Christ's final hours.
UNESCO inscribed the crypt and Nativity Façade in 2005, an unusual designation for an incomplete structure. Inside, stained glass by Joan Vila-Grau floods the nave in chromatic gradients—blue and green on the eastern apse for dawn, red and orange westward for dusk. Gaudí intended the building itself to function as a Bible for the illiterate, every surface a catechism in stone. Sagrada familia skip the line tickets provide timed entry to the basilica and optional access to the Passion or Nativity towers, where spiral staircases climb 65 metres to views across the city grid Ildefons Cerdà laid out in 1859. The basilica's acoustic design, calibrated for an 8,000-person congregation and a 1,200-voice choir, has hosted only one mass—Pope Benedict XVI's consecration ceremony in 2010.
Construction funding relies entirely on private donations and entrance fees, a model Gaudí himself established. Current projections target completion by 2026, the centenary of his death, though the Glory Façade alone requires demolishing an entire city block. The structure remains a construction site in the most literal sense: cranes punctuate the skyline, stonemasons carve capitals in on-site workshops, and 3D printing technology now replicates the plaster models Franco's forces destroyed in 1936. What Gaudí began as a neo-Gothic revival has become modernisme's defining monument, a 144-year argument that architecture can bear theological weight without sacrificing structural logic. Securing sagrada familia skip the line tickets guarantees entry during peak months when daily queues stretch past the adjacent park designed by Gaudí for the basilica's unbuilt schools.
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