It looks like a junkyard, albeit an especially vibrant one.
There's an old rusty Honda parked in one corner. Piles of twisted rebar, wooden boards and PVC pipes sit near a cart piled with power tools. The massive, hand-built wooden spaceship has a turret seat up top, and the 12-foot-tall lookout platform is reachable only by climbing an extension ladder.
Eight-year-old Simon Pluger paused halfway up the ladder's steps. "Am I supposed to be up here?" he asked.
In this "adventure playground," the answer is yes.
Run by nonprofit Leonardo's Basement, the new outdoor play space in southwest Minneapolis is supervised by adults, but there are only three rules: Be safe, be nice and have fun.
Adventure playgrounds are a far cry from most American playgrounds, which carefully follow federal safety guidelines that ban sharp edges on monkey bars, swings and slides, setting height limits and requiring the ground surface under play equipment to be soft enough to break a fall. Instead, these supervised play areas are loaded with tools and materials with which children can build and destroy. Some even allow kids to literally play with fire.
Long popular in Europe, they're now gaining traction in the United States. The Adventure Playground in Berkeley, Calif. regularly makes top 10 lists of area attractions and the Yard, a 50,000-square-foot play space on New York City's Governors Island, has kept crowds supplied with hammers, nails and saws since 2016.
While some parents may be afraid to turn their children loose in play spaces like this, proponents say they encourage creativity, confidence and self-sufficiency, as kids learn to manage risks on their own.