The Bar/Lounge at Plaza Hotel Buenos Aires
The bar/lounge at Plaza Hotel Buenos Aires is recommended by those who travel for a living. Of the 7 reviews that we tracked, 6 acknowledged the bar/lounge, like Frommer's, Concierge and Fodor's.
Plaza Hotel Buenos Aires 
Frommer's
Concierge
Fodor's
Time Out
Star Service
Gayot
Frommer's "The Plaza Bar is among the most famous in the city"
Concierge "Be sure to log some time at the handsome Plaza Bar, a favorite Art-Deco haunt of B"
Fodor's "Originally built in 1909, this Buenos Aires landmark brims with old-school style—the elegant lobby, crystal chandeliers, and swanky bar evoke Argentina's opulent, if distant, past"
Time Out "The Plaza Bar, for instance, is a Bauhaus-esque design treat, while the Plaza Grill is like the banquet hall of an Austro-Hungarian count"
Star Service "These (in addition to suites) have access to the club lounge during the week for breakfast and evening snacks, but guests are sent to the main restaurant for breakfast on weekends"
Gayot "In addition, the Plaza Bar provides a storied setting for coffee and cocktails"
