Some buildings are in a cycle of near-perpetual construction, with work lasting for decades or even centuries. Antoni Gaudí's Sagrada Família in Barcelona has been under construction since 1882. Work was delayed by the Spanish Civil War, during which part of the original models were destroyed. After the restoration of these models, the works are still in progress and the prevision is that the building will be finished in 2026. Today, even with portions of the basilica incomplete, it is still the most popular tourist destination in Barcelona with 1.5 million visitors every year. Gaudí spent 40 years of his life overseeing the project and is buried in the crypt. Also in Barcelona, construction on the Barcelona Cathedral started in 1298, but its dome and central tower were only finished in 1913, 615 years later. Germany's Cologne Cathedral took even longer to complete, from 1248 to 1880, a total of 632 years.