If you go to NYC, you gotta stay at the Hudson Hotel -- just once. It's hip, smart, and not too expensive for Midtown. Great bars, including the Library, frequented infrequently by Bill Clinton, I hear, if he makes the trip from his offices in Harlem. So much to do, so many restaurants, bars, galleries and exhibits to see? But where's the history? asks Krissy, used to Philly and Boston. All around, you just gotta look.