Del Diego Cocktail Bar
At Madrid’s best cocktail bar, tuxedoed bartenders wield wooden batons to crack the ice that chills your martini glass, and the devilishly sweet vodka fizz veritably buzzes in your hand. The location is secluded, on a side street a block from Gran Via, behind frosted-glass sliding doors and up a short flight of stairs. Despite the speakeasy style, jeans are appropriate attire. As with all authentic Madrid institutions, it gets going late (after 11 p.m.) and customers linger as long as they can past the 3 a.m. closing time.