Post by Adriana Velez.
Baby, it's cold outside. Oh, you've noticed? The vicious "Polar vortex" is making much of the country feel like Antarctica this week. Some cities are warning people not to go outdoors -- at all! Well, it's probably cold comfort (har har), but there are places on Earth still colder than where you are, even with this current freeze. Just be glad you don't live in these five locations -- brr!