People, it’s cold out there. So cold, these awful temps broke records, the Metro (shocker) and even Niagara Falls. But don’t cry—frozen tears will only make it worse. So, to warm your hearts on the long Metro ride home (oh yes, there will be delays), here are this week’s best gifs and links.   Ooh, pretty. In case you’ve been locked inside all week (lucky), check out these pictures of Tuesday’s snowfall. [dcist.com] Pop quiz, hot shot. Can you name these cities just from looking at their metro, ahem, subway maps? [washingtonpost.com] Caught a cold recently? Blame your phone. It’s covered in an...