There is a popular legend that 19th-century Italian priest Don Bosco, the founder of the Catholic Salesian Order and a revered saint, had a prophetic dream in 1883 that predicted a flourishing, futuristic city between parallels 15 and 20 in central Brazil. Many Brazilians believe the dream of Dom Bosco, as they call him, found fulfillment in the modern capital city of Brasilia, built between 1956 and 1960. Indeed, even before Brasilia was completed, a shrine, located directly on the 15th parallel, was sculpted and dedicated to Dom Bosco. Today’s Brasilia is filled with references to him, including the Santuario...