After five decades of relative obscurity, Oscar Niemeyer’s forgotten masterpiece, Alto de Pinheiros, has been rediscovered in a lush corner of São Paulo, Brazil. by Manuel Montenegro and Nicholas Olsberg Tucked inside one of the leafy Garden City developments near the Pinheiros River in western São Paulo, sits a fairly inconspicuous semi-urban villa built in 1974 for a prosperous Brazilian family. The...