World's Most Beautiful Buildings
Visionary Catalan architect Antoni Gaudí spent more than 40 years of his life on this glorious, chaotically complex, and still unfinished Gothic-Art Nouveau cathedral. After his untimely death in 1926 (he was hit by a streetcar), his associates continued his sculptural masterwork, and despite the fact that the original drawings were destroyed during the Spanish Civil War, construction continues today. Completion is scheduled for sometime between 2017 and 2026.
Authenticity Alert: The east-facing Nativity façade was the only one completed by Gaudí himself.