Okay so it's finally happening, I leave next week for NYC - except I'm leaving the girls and taking my hubby instead (I negotiated a spa weekend with the girls instead!). Any advice on sites to see (I plan to go to the Museum of Natural History because we're both geeks

)?
And of course I'll be doing some shopping without him, is there a must-visit store? I've heard Macy's is good. Please keep the advice coming!