Host Your Event in Vibrant Venues on NYC's Upper West Side! The Library and the Lounge — Arthouse Bar's cozy lobby-level spaces — are the perfect settings for cocktail receptions, after-work get togethers, after parties, etc. THE LIBRARY features soft seating, original masterpieces from Warhol and Basquiat, a restored 1920s fireplace and is glass enclosed, allowing for a more private experience for up to 50 guests.  THE LOUNGE features a jewel box alcove, your own private bar, and space for up to 30 guests. All of the housemade favorites from our food menus are also available for your soiree!