7 of the World's Most Epic Adult Playgrounds, Because Adults Like to Have Fun Too

Forgive us for our lack of surprise that in design-forward Copenhagen even the parks are museum-worthy. The owners of the Superkilen urban park found inspiration in the vast variety of the 60-plus cultures that live in the neighborhood to create their play space. There's an alfresco boxing ring from Thailand, a hulking black slide shaped like an elephant, from Chernobyl, and workout machines from Santa Monica, California (where else?).