El Boliche de Roberto
This is one of the best spots to hear tango music without the distraction of clicking three-inch heels or flashes of bare skin. Famed singers such as Osvaldo Peredo start around 10:30 p.m. on Tuesdays through Fridays, performing for a crowd that spills onto the Almagro sidewalk when it’s warm out. Surprisingly popular with young, hip twenty-somethings, this tiny, decrepit bar started out as a drinks dispenser and has been in the Pérez family since 1930; the cash register and wine bottles lining the walls appear to come from that era, too. This is as authentic of a porteño watering hole as you’ll find in Buenos Aires.