Rothenburg ob der Tauber looks unreal—and that’s the point. This is the city people imagine when they think of medieval Germany: towers, walls, half-timbered houses, and streets that seem designed for troubadours and time travelers. It attracts romantics, photographers, history lovers, Christmas enthusiasts, and travelers who want to walk straight into a storybook. Rothenburg doesn’t try to modernize its charm—it protects it...