Under Bar, Harlem's best Speakeasy lounge now on rotation! From the site:

Hidden in central Harlem, Under Bar is a chic, subterranean cocktail bar. Plush banquettes lining the natural stone walls create a rich contrast of textures. Our menu of creative small plates, serves as a compliment to our signature cocktails and varied wine list. Also available for private events, Under Bar has everything you need for a fun, sophisticated night out... if you can find the secret door... shhh."