If your ideal December includes twinkle lights, mulled wine, choirs, cozy markets, and streets that look airbrushed by fairy dust, start here. These are the best cities in the world for Christmas—each with a signature tradition. This list is built for whatever version of festive you’re going for: classic European Christmas markets, big-city sparkle and iconic landmarks, or snowy, winter wonderlands. Below, you’ll find destinations that consistently deliver the most “Christmas-y” experience, plus quick cues on what makes each place special so you can choose the right holiday destination (and plan a trip that looks as good as it feels).…