Bright Nights turns Denver's oldest standing structure into a holiday light display that's worth bundling up for. Four Mile Historic Park strings up its historic farmhouse and grounds with thousands of lights each winter, and walking the path feels like stepping into a small town holiday card. It's not a club night or a day party, but it's the kind of low key social outing that pairs well with hot cocoa, a warm coat, and people you actually like spending time with. Bring a date, bring your parents visiting from out of town, bring the group chat. Grab a cup of cider at the fire pits and let the kids (or your inner kid) run around the barnyard. It's slow paced, pretty, and genuinely sweet without being cheesy. Go on a clear night if you can.