I happened upon this play structure via the article below:
It’s a cool concept allowing open play without offering any real instruction or purpose, leaving kids to use their imaginations. There are no tasks to complete or content to absorb. Something like this could be a neat idea for a more art or object-focused museum as a kind of installation piece. The simple graphic patterns and wood construction add to the structure’s ambiguity, allowing it to be whatever the children playing on it want it to be.