Broadway show! For a romantic evening, I definitely would recommend the broadway show Moulin Rouge because of its atmosphere.

For a romantic dinner, a moroccan restaurant on the Upper West Side, great atmosphere, Shalel Kitchen which is self described as "Underground lounge where dark nooks & a waterfall lend a romantic, intimate vibe".

Rise NY is a cool experience that partners with great museums to celebrate New York, otherwise the New York Historical Society is a great outing with their collection of Tiffany Lamps and current Jewish Deli Exhibit. Happy celebrations!