Frigid parts of the U.S. are warming up for a couple days, but don't get comfortable yet.
Baltimore set a new all-time low of 4 degrees, and that's warm compared to the weather elsewhere.
An escaped chunk of the Polar Vortex caused this weird-looking mass emanation of vapors.
Celebrate this awful time of year by thinking about the cities that have it even worse.
Colder than the frost on a champagne glass!