Let's play a game of 'would you rather'. Would you rather play in a treehouse OR find a strange structure made of bamboo in the middle of a field that sorta looks like chimes but maybe it isn't? Researchers are finding that the more a play structure has sensory elements and a little bit of mystery, the more likely it is for a kid's creativity to thrive within it. The more a structure is open to interpretation, the better. So, what innovative playgrounds exist in your city?