The Sagrada Família basilica, soaring 50 stories above Barcelona, has been under construction for nearly a century and a half. It was the improbable dream of architect Antoni Gaudí, who died in 1926 with less than 15 percent of the structure complete. Correspondent Seth Doane talks with architects following the clues Gaudí left behind to complete his masterpiece.
Air Date: Jun 7, 2026
