Location: Toni 2 Piano Bar, Calle del Almirante, 9, Centro, 28004 Madrid
Getting there: Colon station
Classic piano bar (most famous in the city)
Specialty: Cocktails
Price range: $
Pro tip: Even It has been famous and quite crowded, It is still a must to visit. Many tourists (specially mexicans). Large queues, go early
Recommended by @Pitufueros