Gansevoort, New York City
The rooftop bar at hotel Gansevoort, located in the meat packing district is a very hip and trendy. They also have an outdoor patio that gives a pristine view of ... Jersey! Whaaat? yes, Jersey kind of look nice after dark :) The outdoor patio also gives you the opportunity to smoke cigars, something that they have outlawed in indoor bars.
The main draw of the bar besides the view is that this is a great place to watch the younger fashionable crowd of Manhattan; from successful bankers to fashion models.
The place gets very busy during the weekends so you need to make a reservation.
Dress Code: It is advisable to wear nice clubbing clothes if you decide to check it out :)