Adults Night Out: Block Party at Lincoln Park Zoo

You'll get the zoo after dark—literally. Lincoln Park Zoo's 21+ block party flips the family-friendly vibe into something properly rowdy, with DJ sets pumping through the grounds, craft cocktails, carnival games, and rides that feel way more fun when you're tipsy and surrounded by other adults. It's the kind of night that makes you remember why you loved zoos as a kid, just with better drinks and fewer strollers. $25 gets you in; doors open at 9 PM.