Copenhagen explodes with Christmas markets the first weekend of December. Real-life cheer is everywhere, and it's not even freezing yet.
In particular: there's the most epic artificial man-made Christmas wonderland that, despite being artificial and man-made and commercial, is no better way to start off the holiday season. Tivoli, the tourist classic, old school amusement park. I will probably never feel that much child-like joy, see so many twinkly, dramatic displays, or 100% believe in my heart that reindeers could fly, ever, ever again.