Magnum's unadorned concrete exterior walls hug a corner on the 79th Street Causeway and leave the impression of nothing more than a local dive. But like all diamonds in the rough, Magnum's bland façade is a stark contrast to its lush, romantic interior. The décor is red like painted lips that leave a trace of their kiss on a crystal goblet. Further accentuating the lusty theme is the pervading darkness that shrouds strangers in mystery as they sip their cocktails under a curtain of shadows. The dim atmosphere and piano player make Magnum seem as if it has been untouched by the outside world since Rat Packers ruled the bar scene. But alas, that isn't Bogart in the corner booth, sipping a gin and tonic. Revelers nostalgic for that old-school plush intimacy not found in today's ever-popular sports bars can step into the past through the back-door entrance, where clandestine conversations and stiff cocktails make vintage souls feel at home. Cool cats on a budget can enjoy $3 margaritas every Sunday after 5:00 p.m.