This might look like a beginner train set, but it is so very much more. The Wonder Maker sets (so far, there are nine total) encompass entire worlds, connected by trains. While these sets are specifically built for toddlers, their complexity and handsome design might make your big kids — with their snap-together tracks and electric trains — jealous. Kids mix and match pieces to build recycling centers, schools, campgrounds, and package delivery centers. You’ll be hard-pressed not to get them all.