Japanese architects Sanaa get spiritual with the sublime $83m Grace Farms centre for arts, faith and justice in New Canaan, Connecticut, which is backed by a hedge fund manager. Just don't call it a churchIn the bucolic idyll of New Canaan, Connecticut, a silvery serpentine rooftop slithers down the hillside. Charting a course of shallow switchbacks, gently flaring up and down as it swooshes down the slope, it looks …
