La Biblioteca
This hidden-basement Murray Hill lounge is not your average library. Located underneath Zengo, La Biblioteca is the perfect happy hour spot for all of you tequila lovers (they boast an impressive list of over 400 varieties of tequila)! Be sure to ask about the tequila lockers - you can buy a bottle and store it in your locker for up to six months. Simply show the bartender your "library card" whenever you come back to get your booze on.
La Biblioteca, 622 Third Avenue, 212-808-8110
[Photo via @labibliotecanyc]