Sagrada Familia cannot be called a cathedral because it is not the seat of a bishop. Its formal name is: Basilica and Expiatory Church of the Holy Family. It was, however, consecrated and proclaimed a minor basilica by Pope Benedict XVI in November of 2010. It is also a UNESCO site despite being unfinished. Construction of Sagrada Família started in 1882, & Gaudí became involved in 1883, taking over the project & transforming it with his architectural style—combining Gothic and curvilinear Art Nouveau forms. When Gaudi died in 1926, less than a quarter of the project was completed. It progressed slowly, as it relied on private donations and was interrupted by the Spanish Civil War—only to resume intermittent progress in the 1950s. Construction passed the midpoint in 2010 with an anticipated completion date of 2026—the centennial of Gaudí's death. Learn more at the WIKI SITE.