Arriving at Longarone on a slow train from Venice, zigzagging up the Piave Valley into the jagged heights of the Dolomites, the visitor is faced by a gruff modern road and, on the other side, the unresponsive façades of indifferent 1960s buildings. It seems so very disappointing. Why would anyone build like this in such an eagle’s nest setting?

A two-minute walk from the station explains the out-of-place character of this mountain town. Here, in a small bus station square is one of the most extraordinary of all 20th-century European churches. Antithetical in terms of texture, composition and presence to every other building in Longarone, it’s as if a meteorite has crashed and, trying to raise itself from fractured ground, has morphed into some otherworldly formation.