Come dressed to the nines or in casual attire to this celestial high-rise cocktail lounge and nightclub, where tourists and locals watch the sunset at dusk and boogie down to live swing and big-band or DJs' tunes after dark. The room is classic 1930s San Francisco, with red-velvet banquettes, chandeliers, and fabulous views. But what really attracts flocks of all ages is a night of Harry Denton-style fun, which usually includes plenty of drinking and unrestrained dancing. The full bar stocks a decent collection of single-malt Scotches and champagnes, and you can snack from the pricey Starlight appetizer menu (make a reservation to guarantee a table and you'll also have a place to rest your weary dancing-dogs). Early evening is more relaxed, but come the weekend, this place gets loose. Tip: Come dressed for success (no jeans or sneakers), or you'll be turned away at the door.