Not Gaudí's project at first
The first architect, Francisco de Paula del Villar, planned an ordinary neo-Gothic church. After a dispute he left, and in 1883 the job went to a 31-year-old Gaudí, who reimagined the whole building.
Begun in 1882 and taken over by a young Antoni Gaudí a year later, the Sagrada Família has been under construction for more than 140 years. When it's finished, its central tower will be the tallest church tower in the world.

The first architect, Francisco de Paula del Villar, planned an ordinary neo-Gothic church. After a dispute he left, and in 1883 the job went to a 31-year-old Gaudí, who reimagined the whole building.
From 1914 Gaudí worked on nothing else. When he died in 1926, after being hit by a tram, less than a quarter of the basilica was built. Others have continued from his models and drawings ever since.
Inside, the columns branch like trees and the stained glass turns the light green and blue on one side and red and orange on the other. It was consecrated as a basilica in 2010.
It has been paid for mostly by donations and ticket sales, Gaudí's design is enormously complex, and work stopped during the Spanish Civil War, when part of his workshop was destroyed.
From 1883 until his death in 1926, and exclusively from 1914.
Its central Tower of Jesus Christ is planned to reach 172.5 metres, which will make it the tallest church tower in the world.