Neighborhoods: The Hidden Cities of San Francisco - The Castro: Now known internationally as the world's first "gay hometown," San Francisco's Castro District was a quiet, working-class neighborhood of European immigrants only a few decades ago. In this documentary, the story of the Castro's transformation is told by those who lived it, young and old, straight and gay. It's a tale of social upheaval, exuberant street culture, political assassination, and the inspiring coming-of-age of an entire community an ongoing saga even today.