Union Bar, just north of Union Square, is located at 204 Park Avenue South, between 17th and 18th streets. Nestled in the heart of Union Square, Gramercy and the Flatiron District. It is has always been architecturally stunning, and has been featured Interior Design. Yet the new Union Bar has become an even more stunning and is a much more comfortable place to have a laid back drink, meet friends and party the night away. Union Bar is a true cocktail lounge that has been a staple of the New York night life for a decade. Its 50-foot curving mahogany bar orginally resided in the famous bar at the Astor Hotel. Whether you want a quiet drink after work, a lively late night crowd or a late snack the new management welcomes you to Union Bar.