The Basílica i Temple Expiatori de la Sagrada Família, commonly known as the Sagrada Família, is a large Roman Catholic church in Barcelona, Catalonia, Spain, designed by Catalan architect Antoni Gaudí (1852–1926). Although incomplete, the church is a UNESCO World Heritage Site, and in November 2010 was consecrated and proclaimed a minor basilica by Pope Benedict XVI. It is incorrect to refer to it as a cathedral.
The church plan is that of a Latin cross with five aisles. The central nave vaults reach forty-five metres (150 ft) while the side nave vaults reach thirty metres (100 ft). The transept has three aisles. The columns are on a 7.5 metre (25 ft) grid. However, the columns of the apse, resting on del Villar's foundation, do not adhere to the grid, requiring a section of columns of the ambulatory to transition to the grid thus creating a horseshoe pattern to the layout of those columns. The crossing rests on the four central columns of porphyry supporting a great hyperboloid surrounded by two rings of twelve hyperboloids (currently under construction). The central vault reaches sixty metres (200 ft). The apse is capped by a hyperboloid vault reaching seventy-five metres (250 ft). Gaudí intended that a visitor standing at the main entrance be able to see the vaults of the nave, crossing, and apse; thus the graduated increase in vault loft.