Lounges offer ritzy relaxation, but good posture is still necessary to prevent spilt drinks and glimpses of the secret, unspeakable messages carved into most floors. Practice your poise with today's Groupon: for $5, you get $10 worth of coffee, cocktails, sandwiches, and more at Knave Espresso Bar in Le Parker Meridien hotel on West 57th Street. Knave serves delicate Italian-inspired nibbles and signature sips in an elegant setting. Sample one of their famous croissants ($4), or nosh on sandwiches with fillings like parma ham and stracchino cheese, or smoked salmon with fresh herbs ($8 each). Finish your tasting with an expertly foamed cappuccino ($6) and a dessert of affogato, vanilla ice cream craftily capped with espresso or chocolate ($7). Diners can lounge in the high-ceilinged bar, sipping on a signature Knave Martini with vanilla-flavored Stoli vodka, Kahlúa, and a shot of espresso ($18) as they drink in the space's spectacular views or partake in conversation about the befuddled baby koala running for governor.

Reviews

The New York Times reviewed Knave; Zagat gives its appeal, décor and service a very good to excellent rating. Yelpers give it a four-star average.

• Fashioned out of a former passageway in Midtown’s Parker Meridien hotel, this new lounge serves coffee and pastries in the AM, then switches to cocktails and wine after dark. – Zagat
• Le Parker Meridien converted a soaring, vaulted corridor into one of the most ceremonious settings in New York for a cup of coffee. – The New York Times