Fodor's Expert Review La Glorieta de Barrancas de Belgrano

For tango alfresco, drop by the bandstand of this Belgrano park on Saturday and Sunday evenings year-round. Classes run from 4:30 to 6:30, then the milonga proper starts at 7. Expect lots of old-timers dancing low-key steps. The event is canceled only during heavy rain; call ahead if you're unsure.