A muddled collection of bright areas and delightful perspectives, San Francisco draws those unique sorts who have an eye for tense craftsmanship, a preference for inventive food and an enthusiasm for experience. It's truly not unexpected that lyricist Tony Bennett left his heart here: The city flaunts stunning sights, a-list cooking, comfortable bistros and a lot of roaring nightlife scenes - there's no deficiency of ways of remaining occupied here.