As is becoming more common these days, a polar vortex is settling over New York this week. It's bringing temperatures with highs below freezing and lows near 0 degrees. Add wind chill and the real feel is 10 degrees colder! These are miserable conditions and for some, they can even be dangerous. At home, you might go into hibernation for the week. But you've come all this way to see New York, not your hotel room! And so many sights are outdoors too! What can you do to make th