The Basílica de la Sagrada Família received a total of 4.56 million visitors during 2016, widening its lead over the second most visited attraction in Barcelona that year, Park Güell, which had 2.95 million visitors.
This is indicated by the latest official data provided by Barcelona Turisme in its annual report for 2016, which offers a ranking of the 15 most visited places in Barcelona during 2015 and 2016.
The third most popular attraction in Barcelona by number of visitors was the FC Barcelona Museum: a total of 1.94 million people passed through this museum in 2016. Fourth place went to L'Aquàrium de Barcelona, with 1.58 million visitors, and fifth place was for El Born Centre Cultural with 1.3 million people.
The following graph offers visitor data for the fifteen main attractions in Barcelona during 2015 and 2016. The list includes Poble Espanyol, La Pedrera, Barcelona Zoo, Picasso Museum, Barcelona History Museum, Palau Robert, National Art Museum of Catalonia, CosmoCaixa, CaixaForum and Casa Batlló.